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Finding the Fourth Proportional to 123,676.93, 170,674.22 and 69,960.80

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Solution

The fourth proportional to 123,676.93, 170,674.22 and 69,960.80 is: 96,545.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,676.93 : 170,674.22 = 69,960.80 : x
  2. Step 2: Convert to fraction form
    123,676.93/170,674.22 = 69,960.80/x
  3. Step 3: Cross multiply
    123,676.93x = 170,674.22 × 69,960.80
  4. Step 4: Simplify right side
    123,676.93x = 11,940,504,970.58
  5. Step 5: Solve for x
    x = 11,940,504,970.58/123,676.93
  6. Step 6: Final answer
    x = 96,545.94

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1.5x scale

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.