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Finding the Fourth Proportional to 70,449.66, 105,555.66 and 34,863.54

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Solution

The fourth proportional to 70,449.66, 105,555.66 and 34,863.54 is: 52,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,449.66 : 105,555.66 = 34,863.54 : x
  2. Step 2: Convert to fraction form
    70,449.66/105,555.66 = 34,863.54/x
  3. Step 3: Cross multiply
    70,449.66x = 105,555.66 × 34,863.54
  4. Step 4: Simplify right side
    70,449.66x = 3,680,043,974.64
  5. Step 5: Solve for x
    x = 3,680,043,974.64/70,449.66
  6. Step 6: Final answer
    x = 52,236.50

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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.