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Finding the Fourth Proportional to 186,606.67, 257,517.21 and 101,723.80

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Solution

The fourth proportional to 186,606.67, 257,517.21 and 101,723.80 is: 140,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,606.67 : 257,517.21 = 101,723.80 : x
  2. Step 2: Convert to fraction form
    186,606.67/257,517.21 = 101,723.80/x
  3. Step 3: Cross multiply
    186,606.67x = 257,517.21 × 101,723.80
  4. Step 4: Simplify right side
    186,606.67x = 26,195,629,166.60
  5. Step 5: Solve for x
    x = 26,195,629,166.60/186,606.67
  6. Step 6: Final answer
    x = 140,378.85

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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.