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Finding the Fourth Proportional to 71,149.79, 98,221.01 and 45,694.14

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Solution

The fourth proportional to 71,149.79, 98,221.01 and 45,694.14 is: 63,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,149.79 : 98,221.01 = 45,694.14 : x
  2. Step 2: Convert to fraction form
    71,149.79/98,221.01 = 45,694.14/x
  3. Step 3: Cross multiply
    71,149.79x = 98,221.01 × 45,694.14
  4. Step 4: Simplify right side
    71,149.79x = 4,488,124,353.41
  5. Step 5: Solve for x
    x = 4,488,124,353.41/71,149.79
  6. Step 6: Final answer
    x = 63,079.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.