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Finding the Fourth Proportional to 112,260.88, 168,245.52 and 45,623.46

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Solution

The fourth proportional to 112,260.88, 168,245.52 and 45,623.46 is: 68,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,260.88 : 168,245.52 = 45,623.46 : x
  2. Step 2: Convert to fraction form
    112,260.88/168,245.52 = 45,623.46/x
  3. Step 3: Cross multiply
    112,260.88x = 168,245.52 × 45,623.46
  4. Step 4: Simplify right side
    112,260.88x = 7,675,942,580.81
  5. Step 5: Solve for x
    x = 7,675,942,580.81/112,260.88
  6. Step 6: Final answer
    x = 68,375.94

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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.