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Finding the Fourth Proportional to 113,197.22, 169,573.96 and 65,712.73

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Solution

The fourth proportional to 113,197.22, 169,573.96 and 65,712.73 is: 98,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,197.22 : 169,573.96 = 65,712.73 : x
  2. Step 2: Convert to fraction form
    113,197.22/169,573.96 = 65,712.73/x
  3. Step 3: Cross multiply
    113,197.22x = 169,573.96 × 65,712.73
  4. Step 4: Simplify right side
    113,197.22x = 11,143,166,672.08
  5. Step 5: Solve for x
    x = 11,143,166,672.08/113,197.22
  6. Step 6: Final answer
    x = 98,440.29

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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.