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Finding the Fourth Proportional to 66,732.96, 100,127.34 and 29,273.70

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Solution

The fourth proportional to 66,732.96, 100,127.34 and 29,273.70 is: 43,922.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,732.96 : 100,127.34 = 29,273.70 : x
  2. Step 2: Convert to fraction form
    66,732.96/100,127.34 = 29,273.70/x
  3. Step 3: Cross multiply
    66,732.96x = 100,127.34 × 29,273.70
  4. Step 4: Simplify right side
    66,732.96x = 2,931,097,712.96
  5. Step 5: Solve for x
    x = 2,931,097,712.96/66,732.96
  6. Step 6: Final answer
    x = 43,922.79

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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.