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Finding the Fourth Proportional to 100,862.19, 151,223.22 and 44,671.68

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Solution

The fourth proportional to 100,862.19, 151,223.22 and 44,671.68 is: 66,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,862.19 : 151,223.22 = 44,671.68 : x
  2. Step 2: Convert to fraction form
    100,862.19/151,223.22 = 44,671.68/x
  3. Step 3: Cross multiply
    100,862.19x = 151,223.22 × 44,671.68
  4. Step 4: Simplify right side
    100,862.19x = 6,755,395,292.41
  5. Step 5: Solve for x
    x = 6,755,395,292.41/100,862.19
  6. Step 6: Final answer
    x = 66,976.49

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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.