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Finding the Fourth Proportional to 87,902.92, 121,307.70 and 48,158.92

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Solution

The fourth proportional to 87,902.92, 121,307.70 and 48,158.92 is: 66,460.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,902.92 : 121,307.70 = 48,158.92 : x
  2. Step 2: Convert to fraction form
    87,902.92/121,307.70 = 48,158.92/x
  3. Step 3: Cross multiply
    87,902.92x = 121,307.70 × 48,158.92
  4. Step 4: Simplify right side
    87,902.92x = 5,842,047,819.68
  5. Step 5: Solve for x
    x = 5,842,047,819.68/87,902.92
  6. Step 6: Final answer
    x = 66,460.22

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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.