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Finding the Fourth Proportional to 359,146.80, 495,626.04 and 198,008.10

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Solution

The fourth proportional to 359,146.80, 495,626.04 and 198,008.10 is: 273,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,146.80 : 495,626.04 = 198,008.10 : x
  2. Step 2: Convert to fraction form
    359,146.80/495,626.04 = 198,008.10/x
  3. Step 3: Cross multiply
    359,146.80x = 495,626.04 × 198,008.10
  4. Step 4: Simplify right side
    359,146.80x = 98,137,970,490.92
  5. Step 5: Solve for x
    x = 98,137,970,490.92/359,146.80
  6. Step 6: Final answer
    x = 273,253.08

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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.