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Finding the Fourth Proportional to 132,468.62, 182,714.03 and 87,132.11

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Solution

The fourth proportional to 132,468.62, 182,714.03 and 87,132.11 is: 120,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,468.62 : 182,714.03 = 87,132.11 : x
  2. Step 2: Convert to fraction form
    132,468.62/182,714.03 = 87,132.11/x
  3. Step 3: Cross multiply
    132,468.62x = 182,714.03 × 87,132.11
  4. Step 4: Simplify right side
    132,468.62x = 15,920,257,938.02
  5. Step 5: Solve for x
    x = 15,920,257,938.02/132,468.62
  6. Step 6: Final answer
    x = 120,181.36

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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.