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Finding the Fourth Proportional to 171,036.15, 256,554.23 and 71,163.15

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Solution

The fourth proportional to 171,036.15, 256,554.23 and 71,163.15 is: 106,744.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,036.15 : 256,554.23 = 71,163.15 : x
  2. Step 2: Convert to fraction form
    171,036.15/256,554.23 = 71,163.15/x
  3. Step 3: Cross multiply
    171,036.15x = 256,554.23 × 71,163.15
  4. Step 4: Simplify right side
    171,036.15x = 18,257,206,796.81
  5. Step 5: Solve for x
    x = 18,257,206,796.81/171,036.15
  6. Step 6: Final answer
    x = 106,744.73

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1.5x scale

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.