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Finding the Fourth Proportional to 170,243.92, 255,383.16 and 65,151.28

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Solution

The fourth proportional to 170,243.92, 255,383.16 and 65,151.28 is: 97,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,243.92 : 255,383.16 = 65,151.28 : x
  2. Step 2: Convert to fraction form
    170,243.92/255,383.16 = 65,151.28/x
  3. Step 3: Cross multiply
    170,243.92x = 255,383.16 × 65,151.28
  4. Step 4: Simplify right side
    170,243.92x = 16,638,539,764.44
  5. Step 5: Solve for x
    x = 16,638,539,764.44/170,243.92
  6. Step 6: Final answer
    x = 97,733.53

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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.