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Finding the Fourth Proportional to 359,449.20, 539,611.20 and 181,864.80

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Solution

The fourth proportional to 359,449.20, 539,611.20 and 181,864.80 is: 273,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,449.20 : 539,611.20 = 181,864.80 : x
  2. Step 2: Convert to fraction form
    359,449.20/539,611.20 = 181,864.80/x
  3. Step 3: Cross multiply
    359,449.20x = 539,611.20 × 181,864.80
  4. Step 4: Simplify right side
    359,449.20x = 98,136,282,965.76
  5. Step 5: Solve for x
    x = 98,136,282,965.76/359,449.20
  6. Step 6: Final answer
    x = 273,018.50

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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.