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Finding the Fourth Proportional to 117,046.60, 161,523.15 and 63,330.43

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Solution

The fourth proportional to 117,046.60, 161,523.15 and 63,330.43 is: 87,395.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,046.60 : 161,523.15 = 63,330.43 : x
  2. Step 2: Convert to fraction form
    117,046.60/161,523.15 = 63,330.43/x
  3. Step 3: Cross multiply
    117,046.60x = 161,523.15 × 63,330.43
  4. Step 4: Simplify right side
    117,046.60x = 10,229,330,544.45
  5. Step 5: Solve for x
    x = 10,229,330,544.45/117,046.60
  6. Step 6: Final answer
    x = 87,395.37

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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.