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Finding the Fourth Proportional to 114,212.43, 157,631.31 and 68,896.94

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Solution

The fourth proportional to 114,212.43, 157,631.31 and 68,896.94 is: 95,088.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,212.43 : 157,631.31 = 68,896.94 : x
  2. Step 2: Convert to fraction form
    114,212.43/157,631.31 = 68,896.94/x
  3. Step 3: Cross multiply
    114,212.43x = 157,631.31 × 68,896.94
  4. Step 4: Simplify right side
    114,212.43x = 10,860,314,119.03
  5. Step 5: Solve for x
    x = 10,860,314,119.03/114,212.43
  6. Step 6: Final answer
    x = 95,088.72

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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.