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Finding the Fourth Proportional to 173,772.70, 261,047.85 and 166,687.90

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Solution

The fourth proportional to 173,772.70, 261,047.85 and 166,687.90 is: 250,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,772.70 : 261,047.85 = 166,687.90 : x
  2. Step 2: Convert to fraction form
    173,772.70/261,047.85 = 166,687.90/x
  3. Step 3: Cross multiply
    173,772.70x = 261,047.85 × 166,687.90
  4. Step 4: Simplify right side
    173,772.70x = 43,513,517,916.02
  5. Step 5: Solve for x
    x = 43,513,517,916.02/173,772.70
  6. Step 6: Final answer
    x = 250,404.80

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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.