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Finding the Fourth Proportional to 69,216.96, 103,754.52 and 52,541.70

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Solution

The fourth proportional to 69,216.96, 103,754.52 and 52,541.70 is: 78,758.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,216.96 : 103,754.52 = 52,541.70 : x
  2. Step 2: Convert to fraction form
    69,216.96/103,754.52 = 52,541.70/x
  3. Step 3: Cross multiply
    69,216.96x = 103,754.52 × 52,541.70
  4. Step 4: Simplify right side
    69,216.96x = 5,451,438,863.48
  5. Step 5: Solve for x
    x = 5,451,438,863.48/69,216.96
  6. Step 6: Final answer
    x = 78,758.72

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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.