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Finding the Fourth Proportional to 101,866.75, 152,661.69 and 38,652.88

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Solution

The fourth proportional to 101,866.75, 152,661.69 and 38,652.88 is: 57,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,866.75 : 152,661.69 = 38,652.88 : x
  2. Step 2: Convert to fraction form
    101,866.75/152,661.69 = 38,652.88/x
  3. Step 3: Cross multiply
    101,866.75x = 152,661.69 × 38,652.88
  4. Step 4: Simplify right side
    101,866.75x = 5,900,813,984.17
  5. Step 5: Solve for x
    x = 5,900,813,984.17/101,866.75
  6. Step 6: Final answer
    x = 57,926.79

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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.