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Finding the Fourth Proportional to 179,558.50, 269,337.75 and 68,750.50

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Solution

The fourth proportional to 179,558.50, 269,337.75 and 68,750.50 is: 103,125.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,558.50 : 269,337.75 = 68,750.50 : x
  2. Step 2: Convert to fraction form
    179,558.50/269,337.75 = 68,750.50/x
  3. Step 3: Cross multiply
    179,558.50x = 269,337.75 × 68,750.50
  4. Step 4: Simplify right side
    179,558.50x = 18,517,104,981.38
  5. Step 5: Solve for x
    x = 18,517,104,981.38/179,558.50
  6. Step 6: Final answer
    x = 103,125.75

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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.