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Finding the Fourth Proportional to 137,169.36, 205,778.61 and 48,474.36

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Solution

The fourth proportional to 137,169.36, 205,778.61 and 48,474.36 is: 72,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,169.36 : 205,778.61 = 48,474.36 : x
  2. Step 2: Convert to fraction form
    137,169.36/205,778.61 = 48,474.36/x
  3. Step 3: Cross multiply
    137,169.36x = 205,778.61 × 48,474.36
  4. Step 4: Simplify right side
    137,169.36x = 9,974,986,421.44
  5. Step 5: Solve for x
    x = 9,974,986,421.44/137,169.36
  6. Step 6: Final answer
    x = 72,720.22

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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.