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Finding the Fourth Proportional to 123,197.89, 170,013.06 and 69,482.79

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Solution

The fourth proportional to 123,197.89, 170,013.06 and 69,482.79 is: 95,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,197.89 : 170,013.06 = 69,482.79 : x
  2. Step 2: Convert to fraction form
    123,197.89/170,013.06 = 69,482.79/x
  3. Step 3: Cross multiply
    123,197.89x = 170,013.06 × 69,482.79
  4. Step 4: Simplify right side
    123,197.89x = 11,812,981,745.24
  5. Step 5: Solve for x
    x = 11,812,981,745.24/123,197.89
  6. Step 6: Final answer
    x = 95,886.23

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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.