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Finding the Fourth Proportional to 359,178.60, 495,669.88 and 198,039.53

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Solution

The fourth proportional to 359,178.60, 495,669.88 and 198,039.53 is: 273,296.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,178.60 : 495,669.88 = 198,039.53 : x
  2. Step 2: Convert to fraction form
    359,178.60/495,669.88 = 198,039.53/x
  3. Step 3: Cross multiply
    359,178.60x = 495,669.88 × 198,039.53
  4. Step 4: Simplify right side
    359,178.60x = 98,162,231,557.08
  5. Step 5: Solve for x
    x = 98,162,231,557.08/359,178.60
  6. Step 6: Final answer
    x = 273,296.43

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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.