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Finding the Fourth Proportional to 359,232.72, 495,730.55 and 198,087.73

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Solution

The fourth proportional to 359,232.72, 495,730.55 and 198,087.73 is: 273,355.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,232.72 : 495,730.55 = 198,087.73 : x
  2. Step 2: Convert to fraction form
    359,232.72/495,730.55 = 198,087.73/x
  3. Step 3: Cross multiply
    359,232.72x = 495,730.55 × 198,087.73
  4. Step 4: Simplify right side
    359,232.72x = 98,198,139,341.15
  5. Step 5: Solve for x
    x = 98,198,139,341.15/359,232.72
  6. Step 6: Final answer
    x = 273,355.22

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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.