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Finding the Fourth Proportional to 117,751.72, 162,449.46 and 66,753.64

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Solution

The fourth proportional to 117,751.72, 162,449.46 and 66,753.64 is: 92,092.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,751.72 : 162,449.46 = 66,753.64 : x
  2. Step 2: Convert to fraction form
    117,751.72/162,449.46 = 66,753.64/x
  3. Step 3: Cross multiply
    117,751.72x = 162,449.46 × 66,753.64
  4. Step 4: Simplify right side
    117,751.72x = 10,844,092,771.03
  5. Step 5: Solve for x
    x = 10,844,092,771.03/117,751.72
  6. Step 6: Final answer
    x = 92,092.86

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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.