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Finding the Fourth Proportional to 88,055.40, 132,139.80 and 48,640.80

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Solution

The fourth proportional to 88,055.40, 132,139.80 and 48,640.80 is: 72,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,055.40 : 132,139.80 = 48,640.80 : x
  2. Step 2: Convert to fraction form
    88,055.40/132,139.80 = 48,640.80/x
  3. Step 3: Cross multiply
    88,055.40x = 132,139.80 × 48,640.80
  4. Step 4: Simplify right side
    88,055.40x = 6,427,385,583.84
  5. Step 5: Solve for x
    x = 6,427,385,583.84/88,055.40
  6. Step 6: Final answer
    x = 72,992.52

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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.