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Finding the Fourth Proportional to 104,593.28, 144,359.72 and 62,143.64

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Solution

The fourth proportional to 104,593.28, 144,359.72 and 62,143.64 is: 85,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,593.28 : 144,359.72 = 62,143.64 : x
  2. Step 2: Convert to fraction form
    104,593.28/144,359.72 = 62,143.64/x
  3. Step 3: Cross multiply
    104,593.28x = 144,359.72 × 62,143.64
  4. Step 4: Simplify right side
    104,593.28x = 8,971,038,470.18
  5. Step 5: Solve for x
    x = 8,971,038,470.18/104,593.28
  6. Step 6: Final answer
    x = 85,770.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.