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Finding the Fourth Proportional to 107,694.70, 148,617.39 and 62,982.70

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Solution

The fourth proportional to 107,694.70, 148,617.39 and 62,982.70 is: 86,915.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,694.70 : 148,617.39 = 62,982.70 : x
  2. Step 2: Convert to fraction form
    107,694.70/148,617.39 = 62,982.70/x
  3. Step 3: Cross multiply
    107,694.70x = 148,617.39 × 62,982.70
  4. Step 4: Simplify right side
    107,694.70x = 9,360,324,489.15
  5. Step 5: Solve for x
    x = 9,360,324,489.15/107,694.70
  6. Step 6: Final answer
    x = 86,915.37

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1.5x scale

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.