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Finding the Fourth Proportional to 88,298.80, 132,446.96 and 21,739.48

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Solution

The fourth proportional to 88,298.80, 132,446.96 and 21,739.48 is: 32,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,298.80 : 132,446.96 = 21,739.48 : x
  2. Step 2: Convert to fraction form
    88,298.80/132,446.96 = 21,739.48/x
  3. Step 3: Cross multiply
    88,298.80x = 132,446.96 × 21,739.48
  4. Step 4: Simplify right side
    88,298.80x = 2,879,328,037.98
  5. Step 5: Solve for x
    x = 2,879,328,037.98/88,298.80
  6. Step 6: Final answer
    x = 32,608.91

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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.