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Finding the Fourth Proportional to 157,997.93, 218,035.67 and 86,377.73

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Solution

The fourth proportional to 157,997.93, 218,035.67 and 86,377.73 is: 119,200.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,997.93 : 218,035.67 = 86,377.73 : x
  2. Step 2: Convert to fraction form
    157,997.93/218,035.67 = 86,377.73/x
  3. Step 3: Cross multiply
    157,997.93x = 218,035.67 × 86,377.73
  4. Step 4: Simplify right side
    157,997.93x = 18,833,424,711.56
  5. Step 5: Solve for x
    x = 18,833,424,711.56/157,997.93
  6. Step 6: Final answer
    x = 119,200.46

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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.