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Finding the Fourth Proportional to 131,483.78, 197,274.92 and 68,264.44

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Solution

The fourth proportional to 131,483.78, 197,274.92 and 68,264.44 is: 102,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,483.78 : 197,274.92 = 68,264.44 : x
  2. Step 2: Convert to fraction form
    131,483.78/197,274.92 = 68,264.44/x
  3. Step 3: Cross multiply
    131,483.78x = 197,274.92 × 68,264.44
  4. Step 4: Simplify right side
    131,483.78x = 13,466,861,939.84
  5. Step 5: Solve for x
    x = 13,466,861,939.84/131,483.78
  6. Step 6: Final answer
    x = 102,422.23

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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.