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Finding the Fourth Proportional to 88,643.60, 132,936.60 and 29,469.20

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Solution

The fourth proportional to 88,643.60, 132,936.60 and 29,469.20 is: 44,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,643.60 : 132,936.60 = 29,469.20 : x
  2. Step 2: Convert to fraction form
    88,643.60/132,936.60 = 29,469.20/x
  3. Step 3: Cross multiply
    88,643.60x = 132,936.60 × 29,469.20
  4. Step 4: Simplify right side
    88,643.60x = 3,917,535,252.72
  5. Step 5: Solve for x
    x = 3,917,535,252.72/88,643.60
  6. Step 6: Final answer
    x = 44,194.23

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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.