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Finding the Fourth Proportional to 359,853.82, 539,781.42 and 93,613.90

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Solution

The fourth proportional to 359,853.82, 539,781.42 and 93,613.90 is: 140,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,853.82 : 539,781.42 = 93,613.90 : x
  2. Step 2: Convert to fraction form
    359,853.82/539,781.42 = 93,613.90/x
  3. Step 3: Cross multiply
    359,853.82x = 539,781.42 × 93,613.90
  4. Step 4: Simplify right side
    359,853.82x = 50,531,043,873.74
  5. Step 5: Solve for x
    x = 50,531,043,873.74/359,853.82
  6. Step 6: Final answer
    x = 140,421.03

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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.