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Finding the Fourth Proportional to 88,188.72, 132,283.44 and 21,629.28

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Solution

The fourth proportional to 88,188.72, 132,283.44 and 21,629.28 is: 32,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,188.72 : 132,283.44 = 21,629.28 : x
  2. Step 2: Convert to fraction form
    88,188.72/132,283.44 = 21,629.28/x
  3. Step 3: Cross multiply
    88,188.72x = 132,283.44 × 21,629.28
  4. Step 4: Simplify right side
    88,188.72x = 2,861,195,563.12
  5. Step 5: Solve for x
    x = 2,861,195,563.12/88,188.72
  6. Step 6: Final answer
    x = 32,444.01

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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.