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Finding the Fourth Proportional to 117,184.80, 161,715.42 and 63,469.68

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Solution

The fourth proportional to 117,184.80, 161,715.42 and 63,469.68 is: 87,588.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,184.80 : 161,715.42 = 63,469.68 : x
  2. Step 2: Convert to fraction form
    117,184.80/161,715.42 = 63,469.68/x
  3. Step 3: Cross multiply
    117,184.80x = 161,715.42 × 63,469.68
  4. Step 4: Simplify right side
    117,184.80x = 10,264,025,958.47
  5. Step 5: Solve for x
    x = 10,264,025,958.47/117,184.80
  6. Step 6: Final answer
    x = 87,588.37

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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.