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Finding the Fourth Proportional to 151,468.88, 209,027.92 and 87,844.48

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Solution

The fourth proportional to 151,468.88, 209,027.92 and 87,844.48 is: 121,225.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,468.88 : 209,027.92 = 87,844.48 : x
  2. Step 2: Convert to fraction form
    151,468.88/209,027.92 = 87,844.48/x
  3. Step 3: Cross multiply
    151,468.88x = 209,027.92 × 87,844.48
  4. Step 4: Simplify right side
    151,468.88x = 18,361,948,937.88
  5. Step 5: Solve for x
    x = 18,361,948,937.88/151,468.88
  6. Step 6: Final answer
    x = 121,225.88

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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.