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Finding the Fourth Proportional to 108,229.96, 162,347.72 and 51,290.52

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Solution

The fourth proportional to 108,229.96, 162,347.72 and 51,290.52 is: 76,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,229.96 : 162,347.72 = 51,290.52 : x
  2. Step 2: Convert to fraction form
    108,229.96/162,347.72 = 51,290.52/x
  3. Step 3: Cross multiply
    108,229.96x = 162,347.72 × 51,290.52
  4. Step 4: Simplify right side
    108,229.96x = 8,326,898,979.61
  5. Step 5: Solve for x
    x = 8,326,898,979.61/108,229.96
  6. Step 6: Final answer
    x = 76,937.10

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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.