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Finding the Fourth Proportional to 113,800, 170,716.22 and 60,478.08

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Solution

The fourth proportional to 113,800, 170,716.22 and 60,478.08 is: 90,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,800 : 170,716.22 = 60,478.08 : x
  2. Step 2: Convert to fraction form
    113,800/170,716.22 = 60,478.08/x
  3. Step 3: Cross multiply
    113,800x = 170,716.22 × 60,478.08
  4. Step 4: Simplify right side
    113,800x = 10,324,589,210.46
  5. Step 5: Solve for x
    x = 10,324,589,210.46/113,800
  6. Step 6: Final answer
    x = 90,725.74

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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.