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Finding the Fourth Proportional to 124,793.70, 186,927.30 and 82,693.95

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Solution

The fourth proportional to 124,793.70, 186,927.30 and 82,693.95 is: 123,866.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,793.70 : 186,927.30 = 82,693.95 : x
  2. Step 2: Convert to fraction form
    124,793.70/186,927.30 = 82,693.95/x
  3. Step 3: Cross multiply
    124,793.70x = 186,927.30 × 82,693.95
  4. Step 4: Simplify right side
    124,793.70x = 15,457,756,799.84
  5. Step 5: Solve for x
    x = 15,457,756,799.84/124,793.70
  6. Step 6: Final answer
    x = 123,866.48

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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.