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Finding the Fourth Proportional to 101,767.26, 140,446.02 and 56,449.56

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Solution

The fourth proportional to 101,767.26, 140,446.02 and 56,449.56 is: 77,904.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,767.26 : 140,446.02 = 56,449.56 : x
  2. Step 2: Convert to fraction form
    101,767.26/140,446.02 = 56,449.56/x
  3. Step 3: Cross multiply
    101,767.26x = 140,446.02 × 56,449.56
  4. Step 4: Simplify right side
    101,767.26x = 7,928,116,032.75
  5. Step 5: Solve for x
    x = 7,928,116,032.75/101,767.26
  6. Step 6: Final answer
    x = 77,904.39

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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.