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Finding the Fourth Proportional to 63,963.60, 88,246.44 and 40,091.28

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Solution

The fourth proportional to 63,963.60, 88,246.44 and 40,091.28 is: 55,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,963.60 : 88,246.44 = 40,091.28 : x
  2. Step 2: Convert to fraction form
    63,963.60/88,246.44 = 40,091.28/x
  3. Step 3: Cross multiply
    63,963.60x = 88,246.44 × 40,091.28
  4. Step 4: Simplify right side
    63,963.60x = 3,537,912,735.04
  5. Step 5: Solve for x
    x = 3,537,912,735.04/63,963.60
  6. Step 6: Final answer
    x = 55,311.34

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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.