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Finding the Fourth Proportional to 125,052.88, 172,573.48 and 68,469.52

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Solution

The fourth proportional to 125,052.88, 172,573.48 and 68,469.52 is: 94,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,052.88 : 172,573.48 = 68,469.52 : x
  2. Step 2: Convert to fraction form
    125,052.88/172,573.48 = 68,469.52/x
  3. Step 3: Cross multiply
    125,052.88x = 172,573.48 × 68,469.52
  4. Step 4: Simplify right side
    125,052.88x = 11,816,023,340.33
  5. Step 5: Solve for x
    x = 11,816,023,340.33/125,052.88
  6. Step 6: Final answer
    x = 94,488.21

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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.