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Finding the Fourth Proportional to 138,025.44, 206,890.54 and 63,033.21

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Solution

The fourth proportional to 138,025.44, 206,890.54 and 63,033.21 is: 94,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,025.44 : 206,890.54 = 63,033.21 : x
  2. Step 2: Convert to fraction form
    138,025.44/206,890.54 = 63,033.21/x
  3. Step 3: Cross multiply
    138,025.44x = 206,890.54 × 63,033.21
  4. Step 4: Simplify right side
    138,025.44x = 13,040,974,891.21
  5. Step 5: Solve for x
    x = 13,040,974,891.21/138,025.44
  6. Step 6: Final answer
    x = 94,482.40

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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.