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Finding the Fourth Proportional to 359,816.92, 539,728.14 and 123,161.65

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Solution

The fourth proportional to 359,816.92, 539,728.14 and 123,161.65 is: 184,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,816.92 : 539,728.14 = 123,161.65 : x
  2. Step 2: Convert to fraction form
    359,816.92/539,728.14 = 123,161.65/x
  3. Step 3: Cross multiply
    359,816.92x = 539,728.14 × 123,161.65
  4. Step 4: Simplify right side
    359,816.92x = 66,473,808,273.83
  5. Step 5: Solve for x
    x = 66,473,808,273.83/359,816.92
  6. Step 6: Final answer
    x = 184,743.42

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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.