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Finding the Fourth Proportional to 69,359.62, 103,995.69 and 38,216.74

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Solution

The fourth proportional to 69,359.62, 103,995.69 and 38,216.74 is: 57,301.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,359.62 : 103,995.69 = 38,216.74 : x
  2. Step 2: Convert to fraction form
    69,359.62/103,995.69 = 38,216.74/x
  3. Step 3: Cross multiply
    69,359.62x = 103,995.69 × 38,216.74
  4. Step 4: Simplify right side
    69,359.62x = 3,974,376,245.85
  5. Step 5: Solve for x
    x = 3,974,376,245.85/69,359.62
  6. Step 6: Final answer
    x = 57,301.01

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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.