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Finding the Fourth Proportional to 71,806.68, 107,729.19 and 63,962.91

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Solution

The fourth proportional to 71,806.68, 107,729.19 and 63,962.91 is: 95,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,806.68 : 107,729.19 = 63,962.91 : x
  2. Step 2: Convert to fraction form
    71,806.68/107,729.19 = 63,962.91/x
  3. Step 3: Cross multiply
    71,806.68x = 107,729.19 × 63,962.91
  4. Step 4: Simplify right side
    71,806.68x = 6,890,672,484.34
  5. Step 5: Solve for x
    x = 6,890,672,484.34/71,806.68
  6. Step 6: Final answer
    x = 95,961.44

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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.