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Finding the Fourth Proportional to 68,851.92, 103,275.72 and 37,881.84

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Solution

The fourth proportional to 68,851.92, 103,275.72 and 37,881.84 is: 56,821.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,851.92 : 103,275.72 = 37,881.84 : x
  2. Step 2: Convert to fraction form
    68,851.92/103,275.72 = 37,881.84/x
  3. Step 3: Cross multiply
    68,851.92x = 103,275.72 × 37,881.84
  4. Step 4: Simplify right side
    68,851.92x = 3,912,274,300.92
  5. Step 5: Solve for x
    x = 3,912,274,300.92/68,851.92
  6. Step 6: Final answer
    x = 56,821.57

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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.