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Finding the Fourth Proportional to 101,704.52, 140,353.65 and 55,768.47

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Solution

The fourth proportional to 101,704.52, 140,353.65 and 55,768.47 is: 76,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,704.52 : 140,353.65 = 55,768.47 : x
  2. Step 2: Convert to fraction form
    101,704.52/140,353.65 = 55,768.47/x
  3. Step 3: Cross multiply
    101,704.52x = 140,353.65 × 55,768.47
  4. Step 4: Simplify right side
    101,704.52x = 7,827,308,319.42
  5. Step 5: Solve for x
    x = 7,827,308,319.42/101,704.52
  6. Step 6: Final answer
    x = 76,961.27

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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.