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Finding the Fourth Proportional to 67,009.68, 100,366.90 and 44,718.68

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Solution

The fourth proportional to 67,009.68, 100,366.90 and 44,718.68 is: 66,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,009.68 : 100,366.90 = 44,718.68 : x
  2. Step 2: Convert to fraction form
    67,009.68/100,366.90 = 44,718.68/x
  3. Step 3: Cross multiply
    67,009.68x = 100,366.90 × 44,718.68
  4. Step 4: Simplify right side
    67,009.68x = 4,488,275,422.81
  5. Step 5: Solve for x
    x = 4,488,275,422.81/67,009.68
  6. Step 6: Final answer
    x = 66,979.51

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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.