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Finding the Fourth Proportional to 227,791.40, 341,687.10 and 121,503.20

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Solution

The fourth proportional to 227,791.40, 341,687.10 and 121,503.20 is: 182,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,791.40 : 341,687.10 = 121,503.20 : x
  2. Step 2: Convert to fraction form
    227,791.40/341,687.10 = 121,503.20/x
  3. Step 3: Cross multiply
    227,791.40x = 341,687.10 × 121,503.20
  4. Step 4: Simplify right side
    227,791.40x = 41,516,076,048.72
  5. Step 5: Solve for x
    x = 41,516,076,048.72/227,791.40
  6. Step 6: Final answer
    x = 182,254.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.