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Finding the Fourth Proportional to 67,679.32, 101,398.40 and 57,717.54

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Solution

The fourth proportional to 67,679.32, 101,398.40 and 57,717.54 is: 86,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,679.32 : 101,398.40 = 57,717.54 : x
  2. Step 2: Convert to fraction form
    67,679.32/101,398.40 = 57,717.54/x
  3. Step 3: Cross multiply
    67,679.32x = 101,398.40 × 57,717.54
  4. Step 4: Simplify right side
    67,679.32x = 5,852,466,207.94
  5. Step 5: Solve for x
    x = 5,852,466,207.94/67,679.32
  6. Step 6: Final answer
    x = 86,473.48

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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.