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Finding the Fourth Proportional to 231,418.60, 347,147.10 and 73,642.60

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Solution

The fourth proportional to 231,418.60, 347,147.10 and 73,642.60 is: 110,470.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,418.60 : 347,147.10 = 73,642.60 : x
  2. Step 2: Convert to fraction form
    231,418.60/347,147.10 = 73,642.60/x
  3. Step 3: Cross multiply
    231,418.60x = 347,147.10 × 73,642.60
  4. Step 4: Simplify right side
    231,418.60x = 25,564,815,026.46
  5. Step 5: Solve for x
    x = 25,564,815,026.46/231,418.60
  6. Step 6: Final answer
    x = 110,470.01

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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.