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Finding the Fourth Proportional to 171,105.20, 257,095.20 and 151,859.60

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Solution

The fourth proportional to 171,105.20, 257,095.20 and 151,859.60 is: 228,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,105.20 : 257,095.20 = 151,859.60 : x
  2. Step 2: Convert to fraction form
    171,105.20/257,095.20 = 151,859.60/x
  3. Step 3: Cross multiply
    171,105.20x = 257,095.20 × 151,859.60
  4. Step 4: Simplify right side
    171,105.20x = 39,042,374,233.92
  5. Step 5: Solve for x
    x = 39,042,374,233.92/171,105.20
  6. Step 6: Final answer
    x = 228,177.60

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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.