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Finding the Fourth Proportional to 117,224.66, 161,769.80 and 63,511.13

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Solution

The fourth proportional to 117,224.66, 161,769.80 and 63,511.13 is: 87,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,224.66 : 161,769.80 = 63,511.13 : x
  2. Step 2: Convert to fraction form
    117,224.66/161,769.80 = 63,511.13/x
  3. Step 3: Cross multiply
    117,224.66x = 161,769.80 × 63,511.13
  4. Step 4: Simplify right side
    117,224.66x = 10,274,182,797.87
  5. Step 5: Solve for x
    x = 10,274,182,797.87/117,224.66
  6. Step 6: Final answer
    x = 87,645.23

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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.