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Finding the Fourth Proportional to 114,661.80, 158,243.22 and 63,684.36

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Solution

The fourth proportional to 114,661.80, 158,243.22 and 63,684.36 is: 87,889.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,661.80 : 158,243.22 = 63,684.36 : x
  2. Step 2: Convert to fraction form
    114,661.80/158,243.22 = 63,684.36/x
  3. Step 3: Cross multiply
    114,661.80x = 158,243.22 × 63,684.36
  4. Step 4: Simplify right side
    114,661.80x = 10,077,618,190.04
  5. Step 5: Solve for x
    x = 10,077,618,190.04/114,661.80
  6. Step 6: Final answer
    x = 87,889.94

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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.