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Finding the Fourth Proportional to 372,603.20, 558,861.60 and 106,404.80

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Solution

The fourth proportional to 372,603.20, 558,861.60 and 106,404.80 is: 159,594.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,603.20 : 558,861.60 = 106,404.80 : x
  2. Step 2: Convert to fraction form
    372,603.20/558,861.60 = 106,404.80/x
  3. Step 3: Cross multiply
    372,603.20x = 558,861.60 × 106,404.80
  4. Step 4: Simplify right side
    372,603.20x = 59,465,556,775.68
  5. Step 5: Solve for x
    x = 59,465,556,775.68/372,603.20
  6. Step 6: Final answer
    x = 159,594.86

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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.