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Finding the Fourth Proportional to 101,659.42, 140,273.67 and 63,906.94

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Solution

The fourth proportional to 101,659.42, 140,273.67 and 63,906.94 is: 88,181.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,659.42 : 140,273.67 = 63,906.94 : x
  2. Step 2: Convert to fraction form
    101,659.42/140,273.67 = 63,906.94/x
  3. Step 3: Cross multiply
    101,659.42x = 140,273.67 × 63,906.94
  4. Step 4: Simplify right side
    101,659.42x = 8,964,461,012.27
  5. Step 5: Solve for x
    x = 8,964,461,012.27/101,659.42
  6. Step 6: Final answer
    x = 88,181.31

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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.