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Finding the Fourth Proportional to 100,672.53, 151,005.30 and 25,793.30

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Solution

The fourth proportional to 100,672.53, 151,005.30 and 25,793.30 is: 38,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,672.53 : 151,005.30 = 25,793.30 : x
  2. Step 2: Convert to fraction form
    100,672.53/151,005.30 = 25,793.30/x
  3. Step 3: Cross multiply
    100,672.53x = 151,005.30 × 25,793.30
  4. Step 4: Simplify right side
    100,672.53x = 3,894,925,004.49
  5. Step 5: Solve for x
    x = 3,894,925,004.49/100,672.53
  6. Step 6: Final answer
    x = 38,689.05

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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.