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Finding the Fourth Proportional to 69,042.53, 103,562.74 and 31,064.97

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Solution

The fourth proportional to 69,042.53, 103,562.74 and 31,064.97 is: 46,596.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,042.53 : 103,562.74 = 31,064.97 : x
  2. Step 2: Convert to fraction form
    69,042.53/103,562.74 = 31,064.97/x
  3. Step 3: Cross multiply
    69,042.53x = 103,562.74 × 31,064.97
  4. Step 4: Simplify right side
    69,042.53x = 3,217,173,411.22
  5. Step 5: Solve for x
    x = 3,217,173,411.22/69,042.53
  6. Step 6: Final answer
    x = 46,596.98

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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.