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Finding the Fourth Proportional to 69,041.53, 103,561.24 and 31,063.97

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Solution

The fourth proportional to 69,041.53, 103,561.24 and 31,063.97 is: 46,595.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,041.53 : 103,561.24 = 31,063.97 : x
  2. Step 2: Convert to fraction form
    69,041.53/103,561.24 = 31,063.97/x
  3. Step 3: Cross multiply
    69,041.53x = 103,561.24 × 31,063.97
  4. Step 4: Simplify right side
    69,041.53x = 3,217,023,252.52
  5. Step 5: Solve for x
    x = 3,217,023,252.52/69,041.53
  6. Step 6: Final answer
    x = 46,595.48

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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.