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Finding the Fourth Proportional to 247,605.72, 340,930.80 and 193,376.94

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Solution

The fourth proportional to 247,605.72, 340,930.80 and 193,376.94 is: 266,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,605.72 : 340,930.80 = 193,376.94 : x
  2. Step 2: Convert to fraction form
    247,605.72/340,930.80 = 193,376.94/x
  3. Step 3: Cross multiply
    247,605.72x = 340,930.80 × 193,376.94
  4. Step 4: Simplify right side
    247,605.72x = 65,928,154,855.75
  5. Step 5: Solve for x
    x = 65,928,154,855.75/247,605.72
  6. Step 6: Final answer
    x = 266,262.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.