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Finding the Fourth Proportional to 137,968.30, 206,952.45 and 124,846.30

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Solution

The fourth proportional to 137,968.30, 206,952.45 and 124,846.30 is: 187,269.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,968.30 : 206,952.45 = 124,846.30 : x
  2. Step 2: Convert to fraction form
    137,968.30/206,952.45 = 124,846.30/x
  3. Step 3: Cross multiply
    137,968.30x = 206,952.45 × 124,846.30
  4. Step 4: Simplify right side
    137,968.30x = 25,837,247,658.44
  5. Step 5: Solve for x
    x = 25,837,247,658.44/137,968.30
  6. Step 6: Final answer
    x = 187,269.45

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1.5x scale

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.