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Finding the Fourth Proportional to 113,324.54, 156,388.02 and 63,023.54

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Solution

The fourth proportional to 113,324.54, 156,388.02 and 63,023.54 is: 86,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,324.54 : 156,388.02 = 63,023.54 : x
  2. Step 2: Convert to fraction form
    113,324.54/156,388.02 = 63,023.54/x
  3. Step 3: Cross multiply
    113,324.54x = 156,388.02 × 63,023.54
  4. Step 4: Simplify right side
    113,324.54x = 9,856,126,633.99
  5. Step 5: Solve for x
    x = 9,856,126,633.99/113,324.54
  6. Step 6: Final answer
    x = 86,972.57

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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.