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Finding the Fourth Proportional to 248,863.70, 373,295.55 and 91,205.30

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Solution

The fourth proportional to 248,863.70, 373,295.55 and 91,205.30 is: 136,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,863.70 : 373,295.55 = 91,205.30 : x
  2. Step 2: Convert to fraction form
    248,863.70/373,295.55 = 91,205.30/x
  3. Step 3: Cross multiply
    248,863.70x = 373,295.55 × 91,205.30
  4. Step 4: Simplify right side
    248,863.70x = 34,046,532,626.42
  5. Step 5: Solve for x
    x = 34,046,532,626.42/248,863.70
  6. Step 6: Final answer
    x = 136,807.95

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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.