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Finding the Fourth Proportional to 165,712.53, 248,584.85 and 65,850.35

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Solution

The fourth proportional to 165,712.53, 248,584.85 and 65,850.35 is: 98,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,712.53 : 248,584.85 = 65,850.35 : x
  2. Step 2: Convert to fraction form
    165,712.53/248,584.85 = 65,850.35/x
  3. Step 3: Cross multiply
    165,712.53x = 248,584.85 × 65,850.35
  4. Step 4: Simplify right side
    165,712.53x = 16,369,399,377.20
  5. Step 5: Solve for x
    x = 16,369,399,377.20/165,712.53
  6. Step 6: Final answer
    x = 98,781.90

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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.