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Finding the Fourth Proportional to 453,012.95, 679,523.52 and 137,469.86

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Solution

The fourth proportional to 453,012.95, 679,523.52 and 137,469.86 is: 206,206.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,012.95 : 679,523.52 = 137,469.86 : x
  2. Step 2: Convert to fraction form
    453,012.95/679,523.52 = 137,469.86/x
  3. Step 3: Cross multiply
    453,012.95x = 679,523.52 × 137,469.86
  4. Step 4: Simplify right side
    453,012.95x = 93,413,999,763.49
  5. Step 5: Solve for x
    x = 93,413,999,763.49/453,012.95
  6. Step 6: Final answer
    x = 206,206.03

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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.