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Finding the Fourth Proportional to 372,659.76, 558,911.13 and 119,962.80

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Solution

The fourth proportional to 372,659.76, 558,911.13 and 119,962.80 is: 179,918.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,659.76 : 558,911.13 = 119,962.80 : x
  2. Step 2: Convert to fraction form
    372,659.76/558,911.13 = 119,962.80/x
  3. Step 3: Cross multiply
    372,659.76x = 558,911.13 × 119,962.80
  4. Step 4: Simplify right side
    372,659.76x = 67,048,544,105.96
  5. Step 5: Solve for x
    x = 67,048,544,105.96/372,659.76
  6. Step 6: Final answer
    x = 179,918.93

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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.