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Finding the Fourth Proportional to 147,846.82, 221,886.91 and 68,920.42

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Solution

The fourth proportional to 147,846.82, 221,886.91 and 68,920.42 is: 103,435.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,846.82 : 221,886.91 = 68,920.42 : x
  2. Step 2: Convert to fraction form
    147,846.82/221,886.91 = 68,920.42/x
  3. Step 3: Cross multiply
    147,846.82x = 221,886.91 × 68,920.42
  4. Step 4: Simplify right side
    147,846.82x = 15,292,539,029.70
  5. Step 5: Solve for x
    x = 15,292,539,029.70/147,846.82
  6. Step 6: Final answer
    x = 103,435.02

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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.