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Finding the Fourth Proportional to 117,374.39, 161,976.74 and 63,659.39

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Solution

The fourth proportional to 117,374.39, 161,976.74 and 63,659.39 is: 87,850.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,374.39 : 161,976.74 = 63,659.39 : x
  2. Step 2: Convert to fraction form
    117,374.39/161,976.74 = 63,659.39/x
  3. Step 3: Cross multiply
    117,374.39x = 161,976.74 × 63,659.39
  4. Step 4: Simplify right side
    117,374.39x = 10,311,339,334.41
  5. Step 5: Solve for x
    x = 10,311,339,334.41/117,374.39
  6. Step 6: Final answer
    x = 87,850.00

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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.