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Finding the Fourth Proportional to 171,351.70, 256,999.20 and 57,498.10

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Solution

The fourth proportional to 171,351.70, 256,999.20 and 57,498.10 is: 86,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,351.70 : 256,999.20 = 57,498.10 : x
  2. Step 2: Convert to fraction form
    171,351.70/256,999.20 = 57,498.10/x
  3. Step 3: Cross multiply
    171,351.70x = 256,999.20 × 57,498.10
  4. Step 4: Simplify right side
    171,351.70x = 14,776,965,701.52
  5. Step 5: Solve for x
    x = 14,776,965,701.52/171,351.70
  6. Step 6: Final answer
    x = 86,237.64

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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.