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Finding the Fourth Proportional to 112,794, 155,660.82 and 62,493

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Solution

The fourth proportional to 112,794, 155,660.82 and 62,493 is: 86,243.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,794 : 155,660.82 = 62,493 : x
  2. Step 2: Convert to fraction form
    112,794/155,660.82 = 62,493/x
  3. Step 3: Cross multiply
    112,794x = 155,660.82 × 62,493
  4. Step 4: Simplify right side
    112,794x = 9,727,711,624.26
  5. Step 5: Solve for x
    x = 9,727,711,624.26/112,794
  6. Step 6: Final answer
    x = 86,243.17

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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.