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Finding the Fourth Proportional to 113,518.98, 156,637.44 and 68,806.98

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Solution

The fourth proportional to 113,518.98, 156,637.44 and 68,806.98 is: 94,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,518.98 : 156,637.44 = 68,806.98 : x
  2. Step 2: Convert to fraction form
    113,518.98/156,637.44 = 68,806.98/x
  3. Step 3: Cross multiply
    113,518.98x = 156,637.44 × 68,806.98
  4. Step 4: Simplify right side
    113,518.98x = 10,777,749,201.33
  5. Step 5: Solve for x
    x = 10,777,749,201.33/113,518.98
  6. Step 6: Final answer
    x = 94,942.27

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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.