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Finding the Fourth Proportional to 65,898.54, 98,806.29 and 55,906.78

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Solution

The fourth proportional to 65,898.54, 98,806.29 and 55,906.78 is: 83,824.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,898.54 : 98,806.29 = 55,906.78 : x
  2. Step 2: Convert to fraction form
    65,898.54/98,806.29 = 55,906.78/x
  3. Step 3: Cross multiply
    65,898.54x = 98,806.29 × 55,906.78
  4. Step 4: Simplify right side
    65,898.54x = 5,523,941,563.44
  5. Step 5: Solve for x
    x = 5,523,941,563.44/65,898.54
  6. Step 6: Final answer
    x = 83,824.94

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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.