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Finding the Fourth Proportional to 116,920.52, 161,350.11 and 63,205.56

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Solution

The fourth proportional to 116,920.52, 161,350.11 and 63,205.56 is: 87,223.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,920.52 : 161,350.11 = 63,205.56 : x
  2. Step 2: Convert to fraction form
    116,920.52/161,350.11 = 63,205.56/x
  3. Step 3: Cross multiply
    116,920.52x = 161,350.11 × 63,205.56
  4. Step 4: Simplify right side
    116,920.52x = 10,198,224,058.61
  5. Step 5: Solve for x
    x = 10,198,224,058.61/116,920.52
  6. Step 6: Final answer
    x = 87,223.56

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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.