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Finding the Fourth Proportional to 170,749.98, 256,137.34 and 65,568.95

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Solution

The fourth proportional to 170,749.98, 256,137.34 and 65,568.95 is: 98,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,749.98 : 256,137.34 = 65,568.95 : x
  2. Step 2: Convert to fraction form
    170,749.98/256,137.34 = 65,568.95/x
  3. Step 3: Cross multiply
    170,749.98x = 256,137.34 × 65,568.95
  4. Step 4: Simplify right side
    170,749.98x = 16,794,656,439.59
  5. Step 5: Solve for x
    x = 16,794,656,439.59/170,749.98
  6. Step 6: Final answer
    x = 98,358.18

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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.