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Finding the Fourth Proportional to 88,132.10, 132,392.55 and 84,827.30

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Solution

The fourth proportional to 88,132.10, 132,392.55 and 84,827.30 is: 127,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,132.10 : 132,392.55 = 84,827.30 : x
  2. Step 2: Convert to fraction form
    88,132.10/132,392.55 = 84,827.30/x
  3. Step 3: Cross multiply
    88,132.10x = 132,392.55 × 84,827.30
  4. Step 4: Simplify right side
    88,132.10x = 11,230,502,556.62
  5. Step 5: Solve for x
    x = 11,230,502,556.62/88,132.10
  6. Step 6: Final answer
    x = 127,428.06

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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.