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Finding the Fourth Proportional to 66,904.29, 100,324.62 and 38,832.95

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Solution

The fourth proportional to 66,904.29, 100,324.62 and 38,832.95 is: 58,230.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,904.29 : 100,324.62 = 38,832.95 : x
  2. Step 2: Convert to fraction form
    66,904.29/100,324.62 = 38,832.95/x
  3. Step 3: Cross multiply
    66,904.29x = 100,324.62 × 38,832.95
  4. Step 4: Simplify right side
    66,904.29x = 3,895,900,952.23
  5. Step 5: Solve for x
    x = 3,895,900,952.23/66,904.29
  6. Step 6: Final answer
    x = 58,230.96

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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.