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Finding the Fourth Proportional to 114,321.52, 157,769.36 and 68,998.78

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Solution

The fourth proportional to 114,321.52, 157,769.36 and 68,998.78 is: 95,221.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,321.52 : 157,769.36 = 68,998.78 : x
  2. Step 2: Convert to fraction form
    114,321.52/157,769.36 = 68,998.78/x
  3. Step 3: Cross multiply
    114,321.52x = 157,769.36 × 68,998.78
  4. Step 4: Simplify right side
    114,321.52x = 10,885,893,361.38
  5. Step 5: Solve for x
    x = 10,885,893,361.38/114,321.52
  6. Step 6: Final answer
    x = 95,221.73

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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.