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Finding the Fourth Proportional to 114,380.78, 157,845.49 and 63,396.79

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Solution

The fourth proportional to 114,380.78, 157,845.49 and 63,396.79 is: 87,487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,380.78 : 157,845.49 = 63,396.79 : x
  2. Step 2: Convert to fraction form
    114,380.78/157,845.49 = 63,396.79/x
  3. Step 3: Cross multiply
    114,380.78x = 157,845.49 × 63,396.79
  4. Step 4: Simplify right side
    114,380.78x = 10,006,898,073.36
  5. Step 5: Solve for x
    x = 10,006,898,073.36/114,380.78
  6. Step 6: Final answer
    x = 87,487.59

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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.