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Finding the Fourth Proportional to 359,169.90, 538,883.63 and 153,918.43

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Solution

The fourth proportional to 359,169.90, 538,883.63 and 153,918.43 is: 230,932.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,169.90 : 538,883.63 = 153,918.43 : x
  2. Step 2: Convert to fraction form
    359,169.90/538,883.63 = 153,918.43/x
  3. Step 3: Cross multiply
    359,169.90x = 538,883.63 × 153,918.43
  4. Step 4: Simplify right side
    359,169.90x = 82,944,121,608.48
  5. Step 5: Solve for x
    x = 82,944,121,608.48/359,169.90
  6. Step 6: Final answer
    x = 230,932.83

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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.