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Finding the Fourth Proportional to 171,001.62, 256,506.82 and 81,023.22

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Solution

The fourth proportional to 171,001.62, 256,506.82 and 81,023.22 is: 121,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,001.62 : 256,506.82 = 81,023.22 : x
  2. Step 2: Convert to fraction form
    171,001.62/256,506.82 = 81,023.22/x
  3. Step 3: Cross multiply
    171,001.62x = 256,506.82 × 81,023.22
  4. Step 4: Simplify right side
    171,001.62x = 20,783,008,508.36
  5. Step 5: Solve for x
    x = 20,783,008,508.36/171,001.62
  6. Step 6: Final answer
    x = 121,536.91

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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.