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Finding the Fourth Proportional to 117,106.96, 161,608.16 and 63,392.02

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Solution

The fourth proportional to 117,106.96, 161,608.16 and 63,392.02 is: 87,481.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,106.96 : 161,608.16 = 63,392.02 : x
  2. Step 2: Convert to fraction form
    117,106.96/161,608.16 = 63,392.02/x
  3. Step 3: Cross multiply
    117,106.96x = 161,608.16 × 63,392.02
  4. Step 4: Simplify right side
    117,106.96x = 10,244,667,710.88
  5. Step 5: Solve for x
    x = 10,244,667,710.88/117,106.96
  6. Step 6: Final answer
    x = 87,481.29

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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.