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Finding the Fourth Proportional to 108,488.97, 149,708.66 and 60,741.50

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Solution

The fourth proportional to 108,488.97, 149,708.66 and 60,741.50 is: 83,819.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,488.97 : 149,708.66 = 60,741.50 : x
  2. Step 2: Convert to fraction form
    108,488.97/149,708.66 = 60,741.50/x
  3. Step 3: Cross multiply
    108,488.97x = 149,708.66 × 60,741.50
  4. Step 4: Simplify right side
    108,488.97x = 9,093,527,519.14
  5. Step 5: Solve for x
    x = 9,093,527,519.14/108,488.97
  6. Step 6: Final answer
    x = 83,819.83

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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.