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Finding the Fourth Proportional to 359,867.72, 539,440.32 and 123,048.43

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Solution

The fourth proportional to 359,867.72, 539,440.32 and 123,048.43 is: 184,449.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,867.72 : 539,440.32 = 123,048.43 : x
  2. Step 2: Convert to fraction form
    359,867.72/539,440.32 = 123,048.43/x
  3. Step 3: Cross multiply
    359,867.72x = 539,440.32 × 123,048.43
  4. Step 4: Simplify right side
    359,867.72x = 66,377,284,454.70
  5. Step 5: Solve for x
    x = 66,377,284,454.70/359,867.72
  6. Step 6: Final answer
    x = 184,449.12

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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.