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Finding the Fourth Proportional to 54,166.60, 81,249.90 and 47,254.60

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Solution

The fourth proportional to 54,166.60, 81,249.90 and 47,254.60 is: 70,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,166.60 : 81,249.90 = 47,254.60 : x
  2. Step 2: Convert to fraction form
    54,166.60/81,249.90 = 47,254.60/x
  3. Step 3: Cross multiply
    54,166.60x = 81,249.90 × 47,254.60
  4. Step 4: Simplify right side
    54,166.60x = 3,839,431,524.54
  5. Step 5: Solve for x
    x = 3,839,431,524.54/54,166.60
  6. Step 6: Final answer
    x = 70,881.90

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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.