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Finding the Fourth Proportional to 359,393.52, 539,154.81 and 122,680.83

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Solution

The fourth proportional to 359,393.52, 539,154.81 and 122,680.83 is: 184,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,393.52 : 539,154.81 = 122,680.83 : x
  2. Step 2: Convert to fraction form
    359,393.52/539,154.81 = 122,680.83/x
  3. Step 3: Cross multiply
    359,393.52x = 539,154.81 × 122,680.83
  4. Step 4: Simplify right side
    359,393.52x = 66,143,959,589.29
  5. Step 5: Solve for x
    x = 66,143,959,589.29/359,393.52
  6. Step 6: Final answer
    x = 184,043.27

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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.