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Finding the Fourth Proportional to 106,843.44, 147,474.60 and 70,571.40

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Solution

The fourth proportional to 106,843.44, 147,474.60 and 70,571.40 is: 97,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,843.44 : 147,474.60 = 70,571.40 : x
  2. Step 2: Convert to fraction form
    106,843.44/147,474.60 = 70,571.40/x
  3. Step 3: Cross multiply
    106,843.44x = 147,474.60 × 70,571.40
  4. Step 4: Simplify right side
    106,843.44x = 10,407,488,986.44
  5. Step 5: Solve for x
    x = 10,407,488,986.44/106,843.44
  6. Step 6: Final answer
    x = 97,408.78

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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.