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Finding the Fourth Proportional to 170,949.48, 256,435.16 and 65,768.46

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Solution

The fourth proportional to 170,949.48, 256,435.16 and 65,768.46 is: 98,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,949.48 : 256,435.16 = 65,768.46 : x
  2. Step 2: Convert to fraction form
    170,949.48/256,435.16 = 65,768.46/x
  3. Step 3: Cross multiply
    170,949.48x = 256,435.16 × 65,768.46
  4. Step 4: Simplify right side
    170,949.48x = 16,865,345,563.05
  5. Step 5: Solve for x
    x = 16,865,345,563.05/170,949.48
  6. Step 6: Final answer
    x = 98,656.90

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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.