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Finding the Fourth Proportional to 88,373.80, 121,939.05 and 52,572.88

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Solution

The fourth proportional to 88,373.80, 121,939.05 and 52,572.88 is: 72,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,373.80 : 121,939.05 = 52,572.88 : x
  2. Step 2: Convert to fraction form
    88,373.80/121,939.05 = 52,572.88/x
  3. Step 3: Cross multiply
    88,373.80x = 121,939.05 × 52,572.88
  4. Step 4: Simplify right side
    88,373.80x = 6,410,687,042.96
  5. Step 5: Solve for x
    x = 6,410,687,042.96/88,373.80
  6. Step 6: Final answer
    x = 72,540.58

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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.