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Finding the Fourth Proportional to 359,752.14, 539,447.69 and 119,781.51

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Solution

The fourth proportional to 359,752.14, 539,447.69 and 119,781.51 is: 179,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,752.14 : 539,447.69 = 119,781.51 : x
  2. Step 2: Convert to fraction form
    359,752.14/539,447.69 = 119,781.51/x
  3. Step 3: Cross multiply
    359,752.14x = 539,447.69 × 119,781.51
  4. Step 4: Simplify right side
    359,752.14x = 64,615,858,874.21
  5. Step 5: Solve for x
    x = 64,615,858,874.21/359,752.14
  6. Step 6: Final answer
    x = 179,612.16

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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.