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Finding the Fourth Proportional to 72,340.60, 108,527.10 and 27,963.40

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Solution

The fourth proportional to 72,340.60, 108,527.10 and 27,963.40 is: 41,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,340.60 : 108,527.10 = 27,963.40 : x
  2. Step 2: Convert to fraction form
    72,340.60/108,527.10 = 27,963.40/x
  3. Step 3: Cross multiply
    72,340.60x = 108,527.10 × 27,963.40
  4. Step 4: Simplify right side
    72,340.60x = 3,034,786,708.14
  5. Step 5: Solve for x
    x = 3,034,786,708.14/72,340.60
  6. Step 6: Final answer
    x = 41,951.36

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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.