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Finding the Fourth Proportional to 108,230.78, 149,356.00 and 60,488.57

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Solution

The fourth proportional to 108,230.78, 149,356.00 and 60,488.57 is: 83,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,230.78 : 149,356.00 = 60,488.57 : x
  2. Step 2: Convert to fraction form
    108,230.78/149,356.00 = 60,488.57/x
  3. Step 3: Cross multiply
    108,230.78x = 149,356.00 × 60,488.57
  4. Step 4: Simplify right side
    108,230.78x = 9,034,331,309.92
  5. Step 5: Solve for x
    x = 9,034,331,309.92/108,230.78
  6. Step 6: Final answer
    x = 83,472.84

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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.