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Finding the Fourth Proportional to 170,876.60, 256,238.10 and 65,660.60

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Solution

The fourth proportional to 170,876.60, 256,238.10 and 65,660.60 is: 98,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,876.60 : 256,238.10 = 65,660.60 : x
  2. Step 2: Convert to fraction form
    170,876.60/256,238.10 = 65,660.60/x
  3. Step 3: Cross multiply
    170,876.60x = 256,238.10 × 65,660.60
  4. Step 4: Simplify right side
    170,876.60x = 16,824,747,388.86
  5. Step 5: Solve for x
    x = 16,824,747,388.86/170,876.60
  6. Step 6: Final answer
    x = 98,461.39

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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.