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Finding the Fourth Proportional to 191,151.88, 285,295.67 and 187,998.56

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Solution

The fourth proportional to 191,151.88, 285,295.67 and 187,998.56 is: 280,589.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,151.88 : 285,295.67 = 187,998.56 : x
  2. Step 2: Convert to fraction form
    191,151.88/285,295.67 = 187,998.56/x
  3. Step 3: Cross multiply
    191,151.88x = 285,295.67 × 187,998.56
  4. Step 4: Simplify right side
    191,151.88x = 53,635,175,134.24
  5. Step 5: Solve for x
    x = 53,635,175,134.24/191,151.88
  6. Step 6: Final answer
    x = 280,589.32

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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.