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Finding the Fourth Proportional to 91,396.84, 137,065.92 and 29,052.76

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Solution

The fourth proportional to 91,396.84, 137,065.92 and 29,052.76 is: 43,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,396.84 : 137,065.92 = 29,052.76 : x
  2. Step 2: Convert to fraction form
    91,396.84/137,065.92 = 29,052.76/x
  3. Step 3: Cross multiply
    91,396.84x = 137,065.92 × 29,052.76
  4. Step 4: Simplify right side
    91,396.84x = 3,982,143,277.94
  5. Step 5: Solve for x
    x = 3,982,143,277.94/91,396.84
  6. Step 6: Final answer
    x = 43,569.81

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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.