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Finding the Fourth Proportional to 171,127.48, 256,629.78 and 65,893.56

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Solution

The fourth proportional to 171,127.48, 256,629.78 and 65,893.56 is: 98,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,127.48 : 256,629.78 = 65,893.56 : x
  2. Step 2: Convert to fraction form
    171,127.48/256,629.78 = 65,893.56/x
  3. Step 3: Cross multiply
    171,127.48x = 256,629.78 × 65,893.56
  4. Step 4: Simplify right side
    171,127.48x = 16,910,249,806.22
  5. Step 5: Solve for x
    x = 16,910,249,806.22/171,127.48
  6. Step 6: Final answer
    x = 98,816.68

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1.5x scale

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.