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Finding the Fourth Proportional to 359,363.12, 495,912.42 and 198,214.71

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Solution

The fourth proportional to 359,363.12, 495,912.42 and 198,214.71 is: 273,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,363.12 : 495,912.42 = 198,214.71 : x
  2. Step 2: Convert to fraction form
    359,363.12/495,912.42 = 198,214.71/x
  3. Step 3: Cross multiply
    359,363.12x = 495,912.42 × 198,214.71
  4. Step 4: Simplify right side
    359,363.12x = 98,297,133,045.06
  5. Step 5: Solve for x
    x = 98,297,133,045.06/359,363.12
  6. Step 6: Final answer
    x = 273,531.50

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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.