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Finding the Fourth Proportional to 359,121.78, 495,589.50 and 197,973.24

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Solution

The fourth proportional to 359,121.78, 495,589.50 and 197,973.24 is: 273,203.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,121.78 : 495,589.50 = 197,973.24 : x
  2. Step 2: Convert to fraction form
    359,121.78/495,589.50 = 197,973.24/x
  3. Step 3: Cross multiply
    359,121.78x = 495,589.50 × 197,973.24
  4. Step 4: Simplify right side
    359,121.78x = 98,113,459,024.98
  5. Step 5: Solve for x
    x = 98,113,459,024.98/359,121.78
  6. Step 6: Final answer
    x = 273,203.87

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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.