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Finding the Fourth Proportional to 108,451.92, 162,466.01 and 74,711.97

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Solution

The fourth proportional to 108,451.92, 162,466.01 and 74,711.97 is: 111,922.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,451.92 : 162,466.01 = 74,711.97 : x
  2. Step 2: Convert to fraction form
    108,451.92/162,466.01 = 74,711.97/x
  3. Step 3: Cross multiply
    108,451.92x = 162,466.01 × 74,711.97
  4. Step 4: Simplify right side
    108,451.92x = 12,138,155,291.58
  5. Step 5: Solve for x
    x = 12,138,155,291.58/108,451.92
  6. Step 6: Final answer
    x = 111,922.00

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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.