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Finding the Fourth Proportional to 453,281.26, 680,033.67 and 137,721.46

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Solution

The fourth proportional to 453,281.26, 680,033.67 and 137,721.46 is: 206,616.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,281.26 : 680,033.67 = 137,721.46 : x
  2. Step 2: Convert to fraction form
    453,281.26/680,033.67 = 137,721.46/x
  3. Step 3: Cross multiply
    453,281.26x = 680,033.67 × 137,721.46
  4. Step 4: Simplify right side
    453,281.26x = 93,655,229,881.56
  5. Step 5: Solve for x
    x = 93,655,229,881.56/453,281.26
  6. Step 6: Final answer
    x = 206,616.15

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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.