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Finding the Fourth Proportional to 88,004.80, 132,007.20 and 54,179.20

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Solution

The fourth proportional to 88,004.80, 132,007.20 and 54,179.20 is: 81,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,004.80 : 132,007.20 = 54,179.20 : x
  2. Step 2: Convert to fraction form
    88,004.80/132,007.20 = 54,179.20/x
  3. Step 3: Cross multiply
    88,004.80x = 132,007.20 × 54,179.20
  4. Step 4: Simplify right side
    88,004.80x = 7,152,044,490.24
  5. Step 5: Solve for x
    x = 7,152,044,490.24/88,004.80
  6. Step 6: Final answer
    x = 81,268.80

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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.