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Finding the Fourth Proportional to 372,685.88, 558,950.25 and 119,988.97

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Solution

The fourth proportional to 372,685.88, 558,950.25 and 119,988.97 is: 179,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,685.88 : 558,950.25 = 119,988.97 : x
  2. Step 2: Convert to fraction form
    372,685.88/558,950.25 = 119,988.97/x
  3. Step 3: Cross multiply
    372,685.88x = 558,950.25 × 119,988.97
  4. Step 4: Simplify right side
    372,685.88x = 67,067,864,778.74
  5. Step 5: Solve for x
    x = 67,067,864,778.74/372,685.88
  6. Step 6: Final answer
    x = 179,958.16

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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.