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Finding the Fourth Proportional to 108,405.71, 162,677.96 and 58,520.54

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Solution

The fourth proportional to 108,405.71, 162,677.96 and 58,520.54 is: 87,818.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,405.71 : 162,677.96 = 58,520.54 : x
  2. Step 2: Convert to fraction form
    108,405.71/162,677.96 = 58,520.54/x
  3. Step 3: Cross multiply
    108,405.71x = 162,677.96 × 58,520.54
  4. Step 4: Simplify right side
    108,405.71x = 9,520,001,251.91
  5. Step 5: Solve for x
    x = 9,520,001,251.91/108,405.71
  6. Step 6: Final answer
    x = 87,818.27

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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.