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Finding the Fourth Proportional to 245,423.40, 367,940.70 and 105,066.60

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Solution

The fourth proportional to 245,423.40, 367,940.70 and 105,066.60 is: 157,516.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.40 : 367,940.70 = 105,066.60 : x
  2. Step 2: Convert to fraction form
    245,423.40/367,940.70 = 105,066.60/x
  3. Step 3: Cross multiply
    245,423.40x = 367,940.70 × 105,066.60
  4. Step 4: Simplify right side
    245,423.40x = 38,658,278,350.62
  5. Step 5: Solve for x
    x = 38,658,278,350.62/245,423.40
  6. Step 6: Final answer
    x = 157,516.68

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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.