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Finding the Fourth Proportional to 372,661.76, 558,914.13 and 119,964.80

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Solution

The fourth proportional to 372,661.76, 558,914.13 and 119,964.80 is: 179,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,661.76 : 558,914.13 = 119,964.80 : x
  2. Step 2: Convert to fraction form
    372,661.76/558,914.13 = 119,964.80/x
  3. Step 3: Cross multiply
    372,661.76x = 558,914.13 × 119,964.80
  4. Step 4: Simplify right side
    372,661.76x = 67,050,021,822.62
  5. Step 5: Solve for x
    x = 67,050,021,822.62/372,661.76
  6. Step 6: Final answer
    x = 179,921.93

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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.