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Finding the Fourth Proportional to 88,582.80, 132,874.20 and 84,743.40

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Solution

The fourth proportional to 88,582.80, 132,874.20 and 84,743.40 is: 127,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,582.80 : 132,874.20 = 84,743.40 : x
  2. Step 2: Convert to fraction form
    88,582.80/132,874.20 = 84,743.40/x
  3. Step 3: Cross multiply
    88,582.80x = 132,874.20 × 84,743.40
  4. Step 4: Simplify right side
    88,582.80x = 11,260,211,480.28
  5. Step 5: Solve for x
    x = 11,260,211,480.28/88,582.80
  6. Step 6: Final answer
    x = 127,115.10

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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.