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Finding the Fourth Proportional to 123,853.33, 170,916.62 and 67,264.70

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Solution

The fourth proportional to 123,853.33, 170,916.62 and 67,264.70 is: 92,824.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,853.33 : 170,916.62 = 67,264.70 : x
  2. Step 2: Convert to fraction form
    123,853.33/170,916.62 = 67,264.70/x
  3. Step 3: Cross multiply
    123,853.33x = 170,916.62 × 67,264.70
  4. Step 4: Simplify right side
    123,853.33x = 11,496,655,764.77
  5. Step 5: Solve for x
    x = 11,496,655,764.77/123,853.33
  6. Step 6: Final answer
    x = 92,824.76

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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.