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Finding the Fourth Proportional to 69,026.84, 103,687.68 and 49,431.32

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Solution

The fourth proportional to 69,026.84, 103,687.68 and 49,431.32 is: 74,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,026.84 : 103,687.68 = 49,431.32 : x
  2. Step 2: Convert to fraction form
    69,026.84/103,687.68 = 49,431.32/x
  3. Step 3: Cross multiply
    69,026.84x = 103,687.68 × 49,431.32
  4. Step 4: Simplify right side
    69,026.84x = 5,125,418,890.14
  5. Step 5: Solve for x
    x = 5,125,418,890.14/69,026.84
  6. Step 6: Final answer
    x = 74,252.55

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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.