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Finding the Fourth Proportional to 113,885.70, 170,974.35 and 60,620.10

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Solution

The fourth proportional to 113,885.70, 170,974.35 and 60,620.10 is: 91,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,885.70 : 170,974.35 = 60,620.10 : x
  2. Step 2: Convert to fraction form
    113,885.70/170,974.35 = 60,620.10/x
  3. Step 3: Cross multiply
    113,885.70x = 170,974.35 × 60,620.10
  4. Step 4: Simplify right side
    113,885.70x = 10,364,482,194.44
  5. Step 5: Solve for x
    x = 10,364,482,194.44/113,885.70
  6. Step 6: Final answer
    x = 91,007.76

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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.