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Finding the Fourth Proportional to 58,161.96, 80,372.40 and 49,543.56

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Solution

The fourth proportional to 58,161.96, 80,372.40 and 49,543.56 is: 68,462.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,161.96 : 80,372.40 = 49,543.56 : x
  2. Step 2: Convert to fraction form
    58,161.96/80,372.40 = 49,543.56/x
  3. Step 3: Cross multiply
    58,161.96x = 80,372.40 × 49,543.56
  4. Step 4: Simplify right side
    58,161.96x = 3,981,934,821.74
  5. Step 5: Solve for x
    x = 3,981,934,821.74/58,161.96
  6. Step 6: Final answer
    x = 68,462.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.