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Finding the Fourth Proportional to 137,576.79, 206,187.51 and 61,619.82

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Solution

The fourth proportional to 137,576.79, 206,187.51 and 61,619.82 is: 92,350.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,576.79 : 206,187.51 = 61,619.82 : x
  2. Step 2: Convert to fraction form
    137,576.79/206,187.51 = 61,619.82/x
  3. Step 3: Cross multiply
    137,576.79x = 206,187.51 × 61,619.82
  4. Step 4: Simplify right side
    137,576.79x = 12,705,236,710.32
  5. Step 5: Solve for x
    x = 12,705,236,710.32/137,576.79
  6. Step 6: Final answer
    x = 92,350.15

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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.