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Finding the Fourth Proportional to 69,040.53, 103,559.74 and 31,062.97

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Solution

The fourth proportional to 69,040.53, 103,559.74 and 31,062.97 is: 46,593.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,040.53 : 103,559.74 = 31,062.97 : x
  2. Step 2: Convert to fraction form
    69,040.53/103,559.74 = 31,062.97/x
  3. Step 3: Cross multiply
    69,040.53x = 103,559.74 × 31,062.97
  4. Step 4: Simplify right side
    69,040.53x = 3,216,873,096.83
  5. Step 5: Solve for x
    x = 3,216,873,096.83/69,040.53
  6. Step 6: Final answer
    x = 46,593.98

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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.