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Finding the Fourth Proportional to 80,460.48, 110,958.31 and 48,189.93

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Solution

The fourth proportional to 80,460.48, 110,958.31 and 48,189.93 is: 66,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,460.48 : 110,958.31 = 48,189.93 : x
  2. Step 2: Convert to fraction form
    80,460.48/110,958.31 = 48,189.93/x
  3. Step 3: Cross multiply
    80,460.48x = 110,958.31 × 48,189.93
  4. Step 4: Simplify right side
    80,460.48x = 5,347,073,071.34
  5. Step 5: Solve for x
    x = 5,347,073,071.34/80,460.48
  6. Step 6: Final answer
    x = 66,455.89

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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.