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Finding the Fourth Proportional to 87,874.92, 121,269.06 and 48,130.92

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Solution

The fourth proportional to 87,874.92, 121,269.06 and 48,130.92 is: 66,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,874.92 : 121,269.06 = 48,130.92 : x
  2. Step 2: Convert to fraction form
    87,874.92/121,269.06 = 48,130.92/x
  3. Step 3: Cross multiply
    87,874.92x = 121,269.06 × 48,130.92
  4. Step 4: Simplify right side
    87,874.92x = 5,836,791,425.34
  5. Step 5: Solve for x
    x = 5,836,791,425.34/87,874.92
  6. Step 6: Final answer
    x = 66,421.58

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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.