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Finding the Fourth Proportional to 359,700.20, 539,987.70 and 182,115.80

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Solution

The fourth proportional to 359,700.20, 539,987.70 and 182,115.80 is: 273,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,700.20 : 539,987.70 = 182,115.80 : x
  2. Step 2: Convert to fraction form
    359,700.20/539,987.70 = 182,115.80/x
  3. Step 3: Cross multiply
    359,700.20x = 539,987.70 × 182,115.80
  4. Step 4: Simplify right side
    359,700.20x = 98,340,291,975.66
  5. Step 5: Solve for x
    x = 98,340,291,975.66/359,700.20
  6. Step 6: Final answer
    x = 273,395.16

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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.