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Finding the Fourth Proportional to 359,211.71, 495,715.75 and 198,062.62

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Solution

The fourth proportional to 359,211.71, 495,715.75 and 198,062.62 is: 273,328.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,211.71 : 495,715.75 = 198,062.62 : x
  2. Step 2: Convert to fraction form
    359,211.71/495,715.75 = 198,062.62/x
  3. Step 3: Cross multiply
    359,211.71x = 495,715.75 × 198,062.62
  4. Step 4: Simplify right side
    359,211.71x = 98,182,758,485.82
  5. Step 5: Solve for x
    x = 98,182,758,485.82/359,211.71
  6. Step 6: Final answer
    x = 273,328.39

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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.