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Finding the Fourth Proportional to 103,628.55, 155,442.83 and 37,064.64

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Solution

The fourth proportional to 103,628.55, 155,442.83 and 37,064.64 is: 55,596.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.55 : 155,442.83 = 37,064.64 : x
  2. Step 2: Convert to fraction form
    103,628.55/155,442.83 = 37,064.64/x
  3. Step 3: Cross multiply
    103,628.55x = 155,442.83 × 37,064.64
  4. Step 4: Simplify right side
    103,628.55x = 5,761,432,534.53
  5. Step 5: Solve for x
    x = 5,761,432,534.53/103,628.55
  6. Step 6: Final answer
    x = 55,596.96

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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.