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Finding the Fourth Proportional to 71,225.20, 106,837.80 and 29,666.80

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Solution

The fourth proportional to 71,225.20, 106,837.80 and 29,666.80 is: 44,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,225.20 : 106,837.80 = 29,666.80 : x
  2. Step 2: Convert to fraction form
    71,225.20/106,837.80 = 29,666.80/x
  3. Step 3: Cross multiply
    71,225.20x = 106,837.80 × 29,666.80
  4. Step 4: Simplify right side
    71,225.20x = 3,169,535,645.04
  5. Step 5: Solve for x
    x = 3,169,535,645.04/71,225.20
  6. Step 6: Final answer
    x = 44,500.20

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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.