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Finding the Fourth Proportional to 101,865.75, 152,660.19 and 38,651.88

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Solution

The fourth proportional to 101,865.75, 152,660.19 and 38,651.88 is: 57,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,865.75 : 152,660.19 = 38,651.88 : x
  2. Step 2: Convert to fraction form
    101,865.75/152,660.19 = 38,651.88/x
  3. Step 3: Cross multiply
    101,865.75x = 152,660.19 × 38,651.88
  4. Step 4: Simplify right side
    101,865.75x = 5,900,604,062.08
  5. Step 5: Solve for x
    x = 5,900,604,062.08/101,865.75
  6. Step 6: Final answer
    x = 57,925.30

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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.