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Finding the Fourth Proportional to 359,218.43, 495,724.88 and 198,079.19

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Solution

The fourth proportional to 359,218.43, 495,724.88 and 198,079.19 is: 273,351.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,218.43 : 495,724.88 = 198,079.19 : x
  2. Step 2: Convert to fraction form
    359,218.43/495,724.88 = 198,079.19/x
  3. Step 3: Cross multiply
    359,218.43x = 495,724.88 × 198,079.19
  4. Step 4: Simplify right side
    359,218.43x = 98,192,780,709.82
  5. Step 5: Solve for x
    x = 98,192,780,709.82/359,218.43
  6. Step 6: Final answer
    x = 273,351.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.