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Finding the Fourth Proportional to 171,221.24, 256,663.36 and 100,053.56

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Solution

The fourth proportional to 171,221.24, 256,663.36 and 100,053.56 is: 149,981.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,221.24 : 256,663.36 = 100,053.56 : x
  2. Step 2: Convert to fraction form
    171,221.24/256,663.36 = 100,053.56/x
  3. Step 3: Cross multiply
    171,221.24x = 256,663.36 × 100,053.56
  4. Step 4: Simplify right side
    171,221.24x = 25,680,082,889.56
  5. Step 5: Solve for x
    x = 25,680,082,889.56/171,221.24
  6. Step 6: Final answer
    x = 149,981.88

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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.