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Finding the Fourth Proportional to 88,036.80, 132,055.20 and 54,859.20

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Solution

The fourth proportional to 88,036.80, 132,055.20 and 54,859.20 is: 82,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,036.80 : 132,055.20 = 54,859.20 : x
  2. Step 2: Convert to fraction form
    88,036.80/132,055.20 = 54,859.20/x
  3. Step 3: Cross multiply
    88,036.80x = 132,055.20 × 54,859.20
  4. Step 4: Simplify right side
    88,036.80x = 7,244,442,627.84
  5. Step 5: Solve for x
    x = 7,244,442,627.84/88,036.80
  6. Step 6: Final answer
    x = 82,288.80

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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.