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Finding the Fourth Proportional to 226,711.70, 340,053.15 and 76,951.70

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Solution

The fourth proportional to 226,711.70, 340,053.15 and 76,951.70 is: 115,422.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,711.70 : 340,053.15 = 76,951.70 : x
  2. Step 2: Convert to fraction form
    226,711.70/340,053.15 = 76,951.70/x
  3. Step 3: Cross multiply
    226,711.70x = 340,053.15 × 76,951.70
  4. Step 4: Simplify right side
    226,711.70x = 26,167,667,982.86
  5. Step 5: Solve for x
    x = 26,167,667,982.86/226,711.70
  6. Step 6: Final answer
    x = 115,422.66

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1.5x scale

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.