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Finding the Fourth Proportional to 74,073.71, 111,079.71 and 45,951.59

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Solution

The fourth proportional to 74,073.71, 111,079.71 and 45,951.59 is: 68,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,073.71 : 111,079.71 = 45,951.59 : x
  2. Step 2: Convert to fraction form
    74,073.71/111,079.71 = 45,951.59/x
  3. Step 3: Cross multiply
    74,073.71x = 111,079.71 × 45,951.59
  4. Step 4: Simplify right side
    74,073.71x = 5,104,288,735.84
  5. Step 5: Solve for x
    x = 5,104,288,735.84/74,073.71
  6. Step 6: Final answer
    x = 68,908.24

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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.