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Finding the Fourth Proportional to 117,370.62, 161,969.22 and 63,654.66

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Solution

The fourth proportional to 117,370.62, 161,969.22 and 63,654.66 is: 87,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,370.62 : 161,969.22 = 63,654.66 : x
  2. Step 2: Convert to fraction form
    117,370.62/161,969.22 = 63,654.66/x
  3. Step 3: Cross multiply
    117,370.62x = 161,969.22 × 63,654.66
  4. Step 4: Simplify right side
    117,370.62x = 10,310,095,629.57
  5. Step 5: Solve for x
    x = 10,310,095,629.57/117,370.62
  6. Step 6: Final answer
    x = 87,842.22

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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.