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Finding the Fourth Proportional to 171,647.40, 256,952.70 and 150,911.40

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Solution

The fourth proportional to 171,647.40, 256,952.70 and 150,911.40 is: 225,911.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,647.40 : 256,952.70 = 150,911.40 : x
  2. Step 2: Convert to fraction form
    171,647.40/256,952.70 = 150,911.40/x
  3. Step 3: Cross multiply
    171,647.40x = 256,952.70 × 150,911.40
  4. Step 4: Simplify right side
    171,647.40x = 38,777,091,690.78
  5. Step 5: Solve for x
    x = 38,777,091,690.78/171,647.40
  6. Step 6: Final answer
    x = 225,911.33

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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.