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Finding the Fourth Proportional to 101,797.27, 140,481.08 and 56,478.23

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Solution

The fourth proportional to 101,797.27, 140,481.08 and 56,478.23 is: 77,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,797.27 : 140,481.08 = 56,478.23 : x
  2. Step 2: Convert to fraction form
    101,797.27/140,481.08 = 56,478.23/x
  3. Step 3: Cross multiply
    101,797.27x = 140,481.08 × 56,478.23
  4. Step 4: Simplify right side
    101,797.27x = 7,934,122,818.38
  5. Step 5: Solve for x
    x = 7,934,122,818.38/101,797.27
  6. Step 6: Final answer
    x = 77,940.43

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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.