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Finding the Fourth Proportional to 96,793.76, 145,216.53 and 87,540.32

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Solution

The fourth proportional to 96,793.76, 145,216.53 and 87,540.32 is: 131,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,793.76 : 145,216.53 = 87,540.32 : x
  2. Step 2: Convert to fraction form
    96,793.76/145,216.53 = 87,540.32/x
  3. Step 3: Cross multiply
    96,793.76x = 145,216.53 × 87,540.32
  4. Step 4: Simplify right side
    96,793.76x = 12,712,301,505.49
  5. Step 5: Solve for x
    x = 12,712,301,505.49/96,793.76
  6. Step 6: Final answer
    x = 131,333.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.