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Finding the Fourth Proportional to 137,606.88, 206,237.52 and 48,787.68

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Solution

The fourth proportional to 137,606.88, 206,237.52 and 48,787.68 is: 73,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,606.88 : 206,237.52 = 48,787.68 : x
  2. Step 2: Convert to fraction form
    137,606.88/206,237.52 = 48,787.68/x
  3. Step 3: Cross multiply
    137,606.88x = 206,237.52 × 48,787.68
  4. Step 4: Simplify right side
    137,606.88x = 10,061,850,129.75
  5. Step 5: Solve for x
    x = 10,061,850,129.75/137,606.88
  6. Step 6: Final answer
    x = 73,120.25

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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.