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Finding the Fourth Proportional to 453,144.24, 679,672.22 and 137,603.88

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Solution

The fourth proportional to 453,144.24, 679,672.22 and 137,603.88 is: 206,392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,144.24 : 679,672.22 = 137,603.88 : x
  2. Step 2: Convert to fraction form
    453,144.24/679,672.22 = 137,603.88/x
  3. Step 3: Cross multiply
    453,144.24x = 679,672.22 × 137,603.88
  4. Step 4: Simplify right side
    453,144.24x = 93,525,533,912.19
  5. Step 5: Solve for x
    x = 93,525,533,912.19/453,144.24
  6. Step 6: Final answer
    x = 206,392.41

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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.