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Finding the Fourth Proportional to 115,951.80, 173,927.70 and 108,118.20

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Solution

The fourth proportional to 115,951.80, 173,927.70 and 108,118.20 is: 162,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,951.80 : 173,927.70 = 108,118.20 : x
  2. Step 2: Convert to fraction form
    115,951.80/173,927.70 = 108,118.20/x
  3. Step 3: Cross multiply
    115,951.80x = 173,927.70 × 108,118.20
  4. Step 4: Simplify right side
    115,951.80x = 18,804,749,854.14
  5. Step 5: Solve for x
    x = 18,804,749,854.14/115,951.80
  6. Step 6: Final answer
    x = 162,177.30

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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.