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Finding the Fourth Proportional to 453,396.28, 680,132.49 and 137,855.92

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Solution

The fourth proportional to 453,396.28, 680,132.49 and 137,855.92 is: 206,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,396.28 : 680,132.49 = 137,855.92 : x
  2. Step 2: Convert to fraction form
    453,396.28/680,132.49 = 137,855.92/x
  3. Step 3: Cross multiply
    453,396.28x = 680,132.49 × 137,855.92
  4. Step 4: Simplify right side
    453,396.28x = 93,760,290,130.84
  5. Step 5: Solve for x
    x = 93,760,290,130.84/453,396.28
  6. Step 6: Final answer
    x = 206,795.46

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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.