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Finding the Fourth Proportional to 113,608.70, 156,791.68 and 68,301.44

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Solution

The fourth proportional to 113,608.70, 156,791.68 and 68,301.44 is: 94,263.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,608.70 : 156,791.68 = 68,301.44 : x
  2. Step 2: Convert to fraction form
    113,608.70/156,791.68 = 68,301.44/x
  3. Step 3: Cross multiply
    113,608.70x = 156,791.68 × 68,301.44
  4. Step 4: Simplify right side
    113,608.70x = 10,709,097,524.02
  5. Step 5: Solve for x
    x = 10,709,097,524.02/113,608.70
  6. Step 6: Final answer
    x = 94,263.01

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1.5x scale

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.