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Finding the Fourth Proportional to 137,246.19, 205,885.89 and 48,481.53

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Solution

The fourth proportional to 137,246.19, 205,885.89 and 48,481.53 is: 72,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246.19 : 205,885.89 = 48,481.53 : x
  2. Step 2: Convert to fraction form
    137,246.19/205,885.89 = 48,481.53/x
  3. Step 3: Cross multiply
    137,246.19x = 205,885.89 × 48,481.53
  4. Step 4: Simplify right side
    137,246.19x = 9,981,662,952.61
  5. Step 5: Solve for x
    x = 9,981,662,952.61/137,246.19
  6. Step 6: Final answer
    x = 72,728.16

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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.