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Finding the Fourth Proportional to 170,885.80, 255,723.90 and 148,940.20

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Solution

The fourth proportional to 170,885.80, 255,723.90 and 148,940.20 is: 222,883.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,885.80 : 255,723.90 = 148,940.20 : x
  2. Step 2: Convert to fraction form
    170,885.80/255,723.90 = 148,940.20/x
  3. Step 3: Cross multiply
    170,885.80x = 255,723.90 × 148,940.20
  4. Step 4: Simplify right side
    170,885.80x = 38,087,568,810.78
  5. Step 5: Solve for x
    x = 38,087,568,810.78/170,885.80
  6. Step 6: Final answer
    x = 222,883.17

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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.