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Finding the Fourth Proportional to 159,630.77, 220,286.25 and 88,008.95

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Solution

The fourth proportional to 159,630.77, 220,286.25 and 88,008.95 is: 121,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,630.77 : 220,286.25 = 88,008.95 : x
  2. Step 2: Convert to fraction form
    159,630.77/220,286.25 = 88,008.95/x
  3. Step 3: Cross multiply
    159,630.77x = 220,286.25 × 88,008.95
  4. Step 4: Simplify right side
    159,630.77x = 19,387,162,112.65
  5. Step 5: Solve for x
    x = 19,387,162,112.65/159,630.77
  6. Step 6: Final answer
    x = 121,450.03

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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.