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Finding the Fourth Proportional to 91,082.79, 125,694.37 and 50,246

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Solution

The fourth proportional to 91,082.79, 125,694.37 and 50,246 is: 69,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,082.79 : 125,694.37 = 50,246 : x
  2. Step 2: Convert to fraction form
    91,082.79/125,694.37 = 50,246/x
  3. Step 3: Cross multiply
    91,082.79x = 125,694.37 × 50,246
  4. Step 4: Simplify right side
    91,082.79x = 6,315,639,315.02
  5. Step 5: Solve for x
    x = 6,315,639,315.02/91,082.79
  6. Step 6: Final answer
    x = 69,339.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.