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Finding the Fourth Proportional to 73,145.40, 100,935.18 and 41,314.20

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Solution

The fourth proportional to 73,145.40, 100,935.18 and 41,314.20 is: 57,010.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,145.40 : 100,935.18 = 41,314.20 : x
  2. Step 2: Convert to fraction form
    73,145.40/100,935.18 = 41,314.20/x
  3. Step 3: Cross multiply
    73,145.40x = 100,935.18 × 41,314.20
  4. Step 4: Simplify right side
    73,145.40x = 4,170,056,213.56
  5. Step 5: Solve for x
    x = 4,170,056,213.56/73,145.40
  6. Step 6: Final answer
    x = 57,010.51

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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.