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Finding the Fourth Proportional to 174,874.60, 262,286.30 and 86,104.04

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Solution

The fourth proportional to 174,874.60, 262,286.30 and 86,104.04 is: 129,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,874.60 : 262,286.30 = 86,104.04 : x
  2. Step 2: Convert to fraction form
    174,874.60/262,286.30 = 86,104.04/x
  3. Step 3: Cross multiply
    174,874.60x = 262,286.30 × 86,104.04
  4. Step 4: Simplify right side
    174,874.60x = 22,583,910,066.65
  5. Step 5: Solve for x
    x = 22,583,910,066.65/174,874.60
  6. Step 6: Final answer
    x = 129,143.46

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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.