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Finding the Fourth Proportional to 67,814.59, 101,717.78 and 30,364.61

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Solution

The fourth proportional to 67,814.59, 101,717.78 and 30,364.61 is: 45,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,814.59 : 101,717.78 = 30,364.61 : x
  2. Step 2: Convert to fraction form
    67,814.59/101,717.78 = 30,364.61/x
  3. Step 3: Cross multiply
    67,814.59x = 101,717.78 × 30,364.61
  4. Step 4: Simplify right side
    67,814.59x = 3,088,620,315.56
  5. Step 5: Solve for x
    x = 3,088,620,315.56/67,814.59
  6. Step 6: Final answer
    x = 45,545.07

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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.