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Finding the Fourth Proportional to 124,611.40, 186,917.10 and 110,833.30

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Solution

The fourth proportional to 124,611.40, 186,917.10 and 110,833.30 is: 166,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,611.40 : 186,917.10 = 110,833.30 : x
  2. Step 2: Convert to fraction form
    124,611.40/186,917.10 = 110,833.30/x
  3. Step 3: Cross multiply
    124,611.40x = 186,917.10 × 110,833.30
  4. Step 4: Simplify right side
    124,611.40x = 20,716,639,019.43
  5. Step 5: Solve for x
    x = 20,716,639,019.43/124,611.40
  6. Step 6: Final answer
    x = 166,249.95

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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.