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Finding the Fourth Proportional to 164,131.76, 245,983.80 and 74,107.56

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Solution

The fourth proportional to 164,131.76, 245,983.80 and 74,107.56 is: 111,064.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,131.76 : 245,983.80 = 74,107.56 : x
  2. Step 2: Convert to fraction form
    164,131.76/245,983.80 = 74,107.56/x
  3. Step 3: Cross multiply
    164,131.76x = 245,983.80 × 74,107.56
  4. Step 4: Simplify right side
    164,131.76x = 18,229,259,217.53
  5. Step 5: Solve for x
    x = 18,229,259,217.53/164,131.76
  6. Step 6: Final answer
    x = 111,064.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.