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Finding the Fourth Proportional to 73,634.70, 101,615.13 and 40,100.70

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Solution

The fourth proportional to 73,634.70, 101,615.13 and 40,100.70 is: 55,338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,634.70 : 101,615.13 = 40,100.70 : x
  2. Step 2: Convert to fraction form
    73,634.70/101,615.13 = 40,100.70/x
  3. Step 3: Cross multiply
    73,634.70x = 101,615.13 × 40,100.70
  4. Step 4: Simplify right side
    73,634.70x = 4,074,837,843.59
  5. Step 5: Solve for x
    x = 4,074,837,843.59/73,634.70
  6. Step 6: Final answer
    x = 55,338.55

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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.