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Finding the Fourth Proportional to 103,438,353,356.55, 155,157,530,034.80 and 103,438,353,356.55

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Solution

The fourth proportional to 103,438,353,356.55, 155,157,530,034.80 and 103,438,353,356.55 is: 155,157,530,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,438,353,356.55 : 155,157,530,034.80 = 103,438,353,356.55 : x
  2. Step 2: Convert to fraction form
    103,438,353,356.55/155,157,530,034.80 = 103,438,353,356.55/x
  3. Step 3: Cross multiply
    103,438,353,356.55x = 155,157,530,034.80 × 103,438,353,356.55
  4. Step 4: Simplify right side
    103,438,353,356.55x = 16,049,239,417,669,162,106,880
  5. Step 5: Solve for x
    x = 16,049,239,417,669,162,106,880/103,438,353,356.55
  6. Step 6: Final answer
    x = 155,157,530,034.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.