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Finding the Fourth Proportional to 148,371.54, 204,753.15 and 80,388.17

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Solution

The fourth proportional to 148,371.54, 204,753.15 and 80,388.17 is: 110,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,371.54 : 204,753.15 = 80,388.17 : x
  2. Step 2: Convert to fraction form
    148,371.54/204,753.15 = 80,388.17/x
  3. Step 3: Cross multiply
    148,371.54x = 204,753.15 × 80,388.17
  4. Step 4: Simplify right side
    148,371.54x = 16,459,731,030.24
  5. Step 5: Solve for x
    x = 16,459,731,030.24/148,371.54
  6. Step 6: Final answer
    x = 110,935.90

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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.