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Finding the Fourth Proportional to 372,332.30, 558,486.56 and 119,611.76

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Solution

The fourth proportional to 372,332.30, 558,486.56 and 119,611.76 is: 179,413.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,332.30 : 558,486.56 = 119,611.76 : x
  2. Step 2: Convert to fraction form
    372,332.30/558,486.56 = 119,611.76/x
  3. Step 3: Cross multiply
    372,332.30x = 558,486.56 × 119,611.76
  4. Step 4: Simplify right side
    372,332.30x = 66,801,560,377.95
  5. Step 5: Solve for x
    x = 66,801,560,377.95/372,332.30
  6. Step 6: Final answer
    x = 179,413.82

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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.