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Finding the Fourth Proportional to 117,374.52, 161,976.90 and 63,659.52

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Solution

The fourth proportional to 117,374.52, 161,976.90 and 63,659.52 is: 87,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,374.52 : 161,976.90 = 63,659.52 : x
  2. Step 2: Convert to fraction form
    117,374.52/161,976.90 = 63,659.52/x
  3. Step 3: Cross multiply
    117,374.52x = 161,976.90 × 63,659.52
  4. Step 4: Simplify right side
    117,374.52x = 10,311,371,705.09
  5. Step 5: Solve for x
    x = 10,311,371,705.09/117,374.52
  6. Step 6: Final answer
    x = 87,850.17

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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.