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Finding the Fourth Proportional to 170,771.40, 256,132.80 and 58,456.80

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Solution

The fourth proportional to 170,771.40, 256,132.80 and 58,456.80 is: 87,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,771.40 : 256,132.80 = 58,456.80 : x
  2. Step 2: Convert to fraction form
    170,771.40/256,132.80 = 58,456.80/x
  3. Step 3: Cross multiply
    170,771.40x = 256,132.80 × 58,456.80
  4. Step 4: Simplify right side
    170,771.40x = 14,972,703,863.04
  5. Step 5: Solve for x
    x = 14,972,703,863.04/170,771.40
  6. Step 6: Final answer
    x = 87,676.88

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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.