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Finding the Fourth Proportional to 453,365.27, 680,023.28 and 137,797.57

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Solution

The fourth proportional to 453,365.27, 680,023.28 and 137,797.57 is: 206,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,365.27 : 680,023.28 = 137,797.57 : x
  2. Step 2: Convert to fraction form
    453,365.27/680,023.28 = 137,797.57/x
  3. Step 3: Cross multiply
    453,365.27x = 680,023.28 × 137,797.57
  4. Step 4: Simplify right side
    453,365.27x = 93,705,556,721.95
  5. Step 5: Solve for x
    x = 93,705,556,721.95/453,365.27
  6. Step 6: Final answer
    x = 206,688.87

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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.