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Finding the Fourth Proportional to 87,373.92, 120,547.01 and 71,213.48

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Solution

The fourth proportional to 87,373.92, 120,547.01 and 71,213.48 is: 98,250.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,373.92 : 120,547.01 = 71,213.48 : x
  2. Step 2: Convert to fraction form
    87,373.92/120,547.01 = 71,213.48/x
  3. Step 3: Cross multiply
    87,373.92x = 120,547.01 × 71,213.48
  4. Step 4: Simplify right side
    87,373.92x = 8,584,572,113.04
  5. Step 5: Solve for x
    x = 8,584,572,113.04/87,373.92
  6. Step 6: Final answer
    x = 98,250.96

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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.