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Finding the Fourth Proportional to 71,446.73, 107,145.45 and 29,314.85

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Solution

The fourth proportional to 71,446.73, 107,145.45 and 29,314.85 is: 43,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,446.73 : 107,145.45 = 29,314.85 : x
  2. Step 2: Convert to fraction form
    71,446.73/107,145.45 = 29,314.85/x
  3. Step 3: Cross multiply
    71,446.73x = 107,145.45 × 29,314.85
  4. Step 4: Simplify right side
    71,446.73x = 3,140,952,259.21
  5. Step 5: Solve for x
    x = 3,140,952,259.21/71,446.73
  6. Step 6: Final answer
    x = 43,962.16

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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.