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Finding the Fourth Proportional to 359,232.47, 495,730.21 and 198,087.48

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Solution

The fourth proportional to 359,232.47, 495,730.21 and 198,087.48 is: 273,354.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,232.47 : 495,730.21 = 198,087.48 : x
  2. Step 2: Convert to fraction form
    359,232.47/495,730.21 = 198,087.48/x
  3. Step 3: Cross multiply
    359,232.47x = 495,730.21 × 198,087.48
  4. Step 4: Simplify right side
    359,232.47x = 98,197,947,563.55
  5. Step 5: Solve for x
    x = 98,197,947,563.55/359,232.47
  6. Step 6: Final answer
    x = 273,354.87

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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.