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Finding the Fourth Proportional to 359,708.20, 539,562.30 and 123,029.80

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Solution

The fourth proportional to 359,708.20, 539,562.30 and 123,029.80 is: 184,544.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,708.20 : 539,562.30 = 123,029.80 : x
  2. Step 2: Convert to fraction form
    359,708.20/539,562.30 = 123,029.80/x
  3. Step 3: Cross multiply
    359,708.20x = 539,562.30 × 123,029.80
  4. Step 4: Simplify right side
    359,708.20x = 66,382,241,856.54
  5. Step 5: Solve for x
    x = 66,382,241,856.54/359,708.20
  6. Step 6: Final answer
    x = 184,544.70

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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.