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Finding the Fourth Proportional to 117,628.78, 162,328.41 and 63,914.26

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Solution

The fourth proportional to 117,628.78, 162,328.41 and 63,914.26 is: 88,202.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,628.78 : 162,328.41 = 63,914.26 : x
  2. Step 2: Convert to fraction form
    117,628.78/162,328.41 = 63,914.26/x
  3. Step 3: Cross multiply
    117,628.78x = 162,328.41 × 63,914.26
  4. Step 4: Simplify right side
    117,628.78x = 10,375,100,202.13
  5. Step 5: Solve for x
    x = 10,375,100,202.13/117,628.78
  6. Step 6: Final answer
    x = 88,202.06

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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.