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Finding the Fourth Proportional to 100,671.53, 151,003.80 and 25,792.30

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Solution

The fourth proportional to 100,671.53, 151,003.80 and 25,792.30 is: 38,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,671.53 : 151,003.80 = 25,792.30 : x
  2. Step 2: Convert to fraction form
    100,671.53/151,003.80 = 25,792.30/x
  3. Step 3: Cross multiply
    100,671.53x = 151,003.80 × 25,792.30
  4. Step 4: Simplify right side
    100,671.53x = 3,894,734,555.72
  5. Step 5: Solve for x
    x = 3,894,734,555.72/100,671.53
  6. Step 6: Final answer
    x = 38,687.55

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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.