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Finding the Fourth Proportional to 359,174.97, 495,651.21 and 198,030.21

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Solution

The fourth proportional to 359,174.97, 495,651.21 and 198,030.21 is: 273,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,174.97 : 495,651.21 = 198,030.21 : x
  2. Step 2: Convert to fraction form
    359,174.97/495,651.21 = 198,030.21/x
  3. Step 3: Cross multiply
    359,174.97x = 495,651.21 × 198,030.21
  4. Step 4: Simplify right side
    359,174.97x = 98,153,913,203.05
  5. Step 5: Solve for x
    x = 98,153,913,203.05/359,174.97
  6. Step 6: Final answer
    x = 273,276.04

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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.