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Finding the Fourth Proportional to 165,093.70, 247,640.55 and 141,474.10

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Solution

The fourth proportional to 165,093.70, 247,640.55 and 141,474.10 is: 212,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,093.70 : 247,640.55 = 141,474.10 : x
  2. Step 2: Convert to fraction form
    165,093.70/247,640.55 = 141,474.10/x
  3. Step 3: Cross multiply
    165,093.70x = 247,640.55 × 141,474.10
  4. Step 4: Simplify right side
    165,093.70x = 35,034,723,934.76
  5. Step 5: Solve for x
    x = 35,034,723,934.76/165,093.70
  6. Step 6: Final answer
    x = 212,211.15

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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.