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Finding the Fourth Proportional to 71,569.20, 107,224.20 and 60,423.60

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Solution

The fourth proportional to 71,569.20, 107,224.20 and 60,423.60 is: 90,525.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569.20 : 107,224.20 = 60,423.60 : x
  2. Step 2: Convert to fraction form
    71,569.20/107,224.20 = 60,423.60/x
  3. Step 3: Cross multiply
    71,569.20x = 107,224.20 × 60,423.60
  4. Step 4: Simplify right side
    71,569.20x = 6,478,872,171.12
  5. Step 5: Solve for x
    x = 6,478,872,171.12/71,569.20
  6. Step 6: Final answer
    x = 90,525.98

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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.