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Finding the Fourth Proportional to 170,781.30, 255,711.15 and 170,781.30

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Solution

The fourth proportional to 170,781.30, 255,711.15 and 170,781.30 is: 255,711.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,781.30 : 255,711.15 = 170,781.30 : x
  2. Step 2: Convert to fraction form
    170,781.30/255,711.15 = 170,781.30/x
  3. Step 3: Cross multiply
    170,781.30x = 255,711.15 × 170,781.30
  4. Step 4: Simplify right side
    170,781.30x = 43,670,682,621.50
  5. Step 5: Solve for x
    x = 43,670,682,621.50/170,781.30
  6. Step 6: Final answer
    x = 255,711.15

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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.