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Finding the Fourth Proportional to 69,248.05, 95,723.74 and 61,768.51

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Solution

The fourth proportional to 69,248.05, 95,723.74 and 61,768.51 is: 85,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,248.05 : 95,723.74 = 61,768.51 : x
  2. Step 2: Convert to fraction form
    69,248.05/95,723.74 = 61,768.51/x
  3. Step 3: Cross multiply
    69,248.05x = 95,723.74 × 61,768.51
  4. Step 4: Simplify right side
    69,248.05x = 5,912,712,791.43
  5. Step 5: Solve for x
    x = 5,912,712,791.43/69,248.05
  6. Step 6: Final answer
    x = 85,384.54

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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.