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Finding the Fourth Proportional to 117,052.74, 161,531.55 and 63,336.60

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Solution

The fourth proportional to 117,052.74, 161,531.55 and 63,336.60 is: 87,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,052.74 : 161,531.55 = 63,336.60 : x
  2. Step 2: Convert to fraction form
    117,052.74/161,531.55 = 63,336.60/x
  3. Step 3: Cross multiply
    117,052.74x = 161,531.55 × 63,336.60
  4. Step 4: Simplify right side
    117,052.74x = 10,230,859,169.73
  5. Step 5: Solve for x
    x = 10,230,859,169.73/117,052.74
  6. Step 6: Final answer
    x = 87,403.84

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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.