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Finding the Fourth Proportional to 359,552.52, 539,161.92 and 209,835.90

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Solution

The fourth proportional to 359,552.52, 539,161.92 and 209,835.90 is: 314,656.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,552.52 : 539,161.92 = 209,835.90 : x
  2. Step 2: Convert to fraction form
    359,552.52/539,161.92 = 209,835.90/x
  3. Step 3: Cross multiply
    359,552.52x = 539,161.92 × 209,835.90
  4. Step 4: Simplify right side
    359,552.52x = 113,135,526,728.93
  5. Step 5: Solve for x
    x = 113,135,526,728.93/359,552.52
  6. Step 6: Final answer
    x = 314,656.47

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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.