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Finding the Fourth Proportional to 68,197.55, 94,108.43 and 37,981.31

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Solution

The fourth proportional to 68,197.55, 94,108.43 and 37,981.31 is: 52,411.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,197.55 : 94,108.43 = 37,981.31 : x
  2. Step 2: Convert to fraction form
    68,197.55/94,108.43 = 37,981.31/x
  3. Step 3: Cross multiply
    68,197.55x = 94,108.43 × 37,981.31
  4. Step 4: Simplify right side
    68,197.55x = 3,574,361,077.85
  5. Step 5: Solve for x
    x = 3,574,361,077.85/68,197.55
  6. Step 6: Final answer
    x = 52,411.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.