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Finding the Fourth Proportional to 79,896.78, 110,270.97 and 48,068.64

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Solution

The fourth proportional to 79,896.78, 110,270.97 and 48,068.64 is: 66,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,896.78 : 110,270.97 = 48,068.64 : x
  2. Step 2: Convert to fraction form
    79,896.78/110,270.97 = 48,068.64/x
  3. Step 3: Cross multiply
    79,896.78x = 110,270.97 × 48,068.64
  4. Step 4: Simplify right side
    79,896.78x = 5,300,575,559.38
  5. Step 5: Solve for x
    x = 5,300,575,559.38/79,896.78
  6. Step 6: Final answer
    x = 66,342.79

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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.