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Finding the Fourth Proportional to 114,220.87, 157,639.49 and 68,923.30

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Solution

The fourth proportional to 114,220.87, 157,639.49 and 68,923.30 is: 95,123.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,220.87 : 157,639.49 = 68,923.30 : x
  2. Step 2: Convert to fraction form
    114,220.87/157,639.49 = 68,923.30/x
  3. Step 3: Cross multiply
    114,220.87x = 157,639.49 × 68,923.30
  4. Step 4: Simplify right side
    114,220.87x = 10,865,033,861.12
  5. Step 5: Solve for x
    x = 10,865,033,861.12/114,220.87
  6. Step 6: Final answer
    x = 95,123.02

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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.