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Finding the Fourth Proportional to 117,202.44, 161,739.54 and 63,487.92

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Solution

The fourth proportional to 117,202.44, 161,739.54 and 63,487.92 is: 87,613.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,202.44 : 161,739.54 = 63,487.92 : x
  2. Step 2: Convert to fraction form
    117,202.44/161,739.54 = 63,487.92/x
  3. Step 3: Cross multiply
    117,202.44x = 161,739.54 × 63,487.92
  4. Step 4: Simplify right side
    117,202.44x = 10,268,506,976.36
  5. Step 5: Solve for x
    x = 10,268,506,976.36/117,202.44
  6. Step 6: Final answer
    x = 87,613.42

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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.