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Finding the Fourth Proportional to 359,680.80, 496,359.59 and 198,535.94

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Solution

The fourth proportional to 359,680.80, 496,359.59 and 198,535.94 is: 273,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,680.80 : 496,359.59 = 198,535.94 : x
  2. Step 2: Convert to fraction form
    359,680.80/496,359.59 = 198,535.94/x
  3. Step 3: Cross multiply
    359,680.80x = 496,359.59 × 198,535.94
  4. Step 4: Simplify right side
    359,680.80x = 98,545,214,304.19
  5. Step 5: Solve for x
    x = 98,545,214,304.19/359,680.80
  6. Step 6: Final answer
    x = 273,979.64

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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.