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Finding the Fourth Proportional to 168,310, 232,251.19 and 117,432.10

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Solution

The fourth proportional to 168,310, 232,251.19 and 117,432.10 is: 162,044.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,310 : 232,251.19 = 117,432.10 : x
  2. Step 2: Convert to fraction form
    168,310/232,251.19 = 117,432.10/x
  3. Step 3: Cross multiply
    168,310x = 232,251.19 × 117,432.10
  4. Step 4: Simplify right side
    168,310x = 27,273,744,969.20
  5. Step 5: Solve for x
    x = 27,273,744,969.20/168,310
  6. Step 6: Final answer
    x = 162,044.71

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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.