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Finding the Fourth Proportional to 88,398.63, 132,386.89 and 50,879.84

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Solution

The fourth proportional to 88,398.63, 132,386.89 and 50,879.84 is: 76,198.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,398.63 : 132,386.89 = 50,879.84 : x
  2. Step 2: Convert to fraction form
    88,398.63/132,386.89 = 50,879.84/x
  3. Step 3: Cross multiply
    88,398.63x = 132,386.89 × 50,879.84
  4. Step 4: Simplify right side
    88,398.63x = 6,735,823,781.30
  5. Step 5: Solve for x
    x = 6,735,823,781.30/88,398.63
  6. Step 6: Final answer
    x = 76,198.28

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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.