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Finding the Fourth Proportional to 112,551.32, 168,751.98 and 61,974.17

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Solution

The fourth proportional to 112,551.32, 168,751.98 and 61,974.17 is: 92,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,551.32 : 168,751.98 = 61,974.17 : x
  2. Step 2: Convert to fraction form
    112,551.32/168,751.98 = 61,974.17/x
  3. Step 3: Cross multiply
    112,551.32x = 168,751.98 × 61,974.17
  4. Step 4: Simplify right side
    112,551.32x = 10,458,263,052.60
  5. Step 5: Solve for x
    x = 10,458,263,052.60/112,551.32
  6. Step 6: Final answer
    x = 92,919.95

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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.