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Finding the Fourth Proportional to 71,566.70, 107,220.45 and 60,421.10

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Solution

The fourth proportional to 71,566.70, 107,220.45 and 60,421.10 is: 90,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,566.70 : 107,220.45 = 60,421.10 : x
  2. Step 2: Convert to fraction form
    71,566.70/107,220.45 = 60,421.10/x
  3. Step 3: Cross multiply
    71,566.70x = 107,220.45 × 60,421.10
  4. Step 4: Simplify right side
    71,566.70x = 6,478,377,531.50
  5. Step 5: Solve for x
    x = 6,478,377,531.50/71,566.70
  6. Step 6: Final answer
    x = 90,522.23

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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.