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Finding the Fourth Proportional to 113,984.70, 171,026.28 and 61,383.72

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Solution

The fourth proportional to 113,984.70, 171,026.28 and 61,383.72 is: 92,102.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,984.70 : 171,026.28 = 61,383.72 : x
  2. Step 2: Convert to fraction form
    113,984.70/171,026.28 = 61,383.72/x
  3. Step 3: Cross multiply
    113,984.70x = 171,026.28 × 61,383.72
  4. Step 4: Simplify right side
    113,984.70x = 10,498,229,284.16
  5. Step 5: Solve for x
    x = 10,498,229,284.16/113,984.70
  6. Step 6: Final answer
    x = 92,102.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.