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Finding the Fourth Proportional to 108,899.56, 163,309.02 and 38,760.04

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Solution

The fourth proportional to 108,899.56, 163,309.02 and 38,760.04 is: 58,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,899.56 : 163,309.02 = 38,760.04 : x
  2. Step 2: Convert to fraction form
    108,899.56/163,309.02 = 38,760.04/x
  3. Step 3: Cross multiply
    108,899.56x = 163,309.02 × 38,760.04
  4. Step 4: Simplify right side
    108,899.56x = 6,329,864,147.56
  5. Step 5: Solve for x
    x = 6,329,864,147.56/108,899.56
  6. Step 6: Final answer
    x = 58,125.71

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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.