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Finding the Fourth Proportional to 359,178.56, 495,669.84 and 198,039.44

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Solution

The fourth proportional to 359,178.56, 495,669.84 and 198,039.44 is: 273,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,178.56 : 495,669.84 = 198,039.44 : x
  2. Step 2: Convert to fraction form
    359,178.56/495,669.84 = 198,039.44/x
  3. Step 3: Cross multiply
    359,178.56x = 495,669.84 × 198,039.44
  4. Step 4: Simplify right side
    359,178.56x = 98,162,177,538.49
  5. Step 5: Solve for x
    x = 98,162,177,538.49/359,178.56
  6. Step 6: Final answer
    x = 273,296.32

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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.