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Finding the Fourth Proportional to 191,146.88, 285,288.22 and 187,993.56

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Solution

The fourth proportional to 191,146.88, 285,288.22 and 187,993.56 is: 280,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,146.88 : 285,288.22 = 187,993.56 : x
  2. Step 2: Convert to fraction form
    191,146.88/285,288.22 = 187,993.56/x
  3. Step 3: Cross multiply
    191,146.88x = 285,288.22 × 187,993.56
  4. Step 4: Simplify right side
    191,146.88x = 53,632,348,103.86
  5. Step 5: Solve for x
    x = 53,632,348,103.86/191,146.88
  6. Step 6: Final answer
    x = 280,581.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.