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Finding the Fourth Proportional to 117,654.96, 162,337.62 and 66,663.24

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Solution

The fourth proportional to 117,654.96, 162,337.62 and 66,663.24 is: 91,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,654.96 : 162,337.62 = 66,663.24 : x
  2. Step 2: Convert to fraction form
    117,654.96/162,337.62 = 66,663.24/x
  3. Step 3: Cross multiply
    117,654.96x = 162,337.62 × 66,663.24
  4. Step 4: Simplify right side
    117,654.96x = 10,821,951,723.09
  5. Step 5: Solve for x
    x = 10,821,951,723.09/117,654.96
  6. Step 6: Final answer
    x = 91,980.41

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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.