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Finding the Fourth Proportional to 88,057.40, 132,142.80 and 48,642.80

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Solution

The fourth proportional to 88,057.40, 132,142.80 and 48,642.80 is: 72,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,057.40 : 132,142.80 = 48,642.80 : x
  2. Step 2: Convert to fraction form
    88,057.40/132,142.80 = 48,642.80/x
  3. Step 3: Cross multiply
    88,057.40x = 132,142.80 × 48,642.80
  4. Step 4: Simplify right side
    88,057.40x = 6,427,795,791.84
  5. Step 5: Solve for x
    x = 6,427,795,791.84/88,057.40
  6. Step 6: Final answer
    x = 72,995.52

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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.