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Finding the Fourth Proportional to 170,781.80, 255,711.90 and 170,781.80

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Solution

The fourth proportional to 170,781.80, 255,711.90 and 170,781.80 is: 255,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,781.80 : 255,711.90 = 170,781.80 : x
  2. Step 2: Convert to fraction form
    170,781.80/255,711.90 = 170,781.80/x
  3. Step 3: Cross multiply
    170,781.80x = 255,711.90 × 170,781.80
  4. Step 4: Simplify right side
    170,781.80x = 43,670,938,563.42
  5. Step 5: Solve for x
    x = 43,670,938,563.42/170,781.80
  6. Step 6: Final answer
    x = 255,711.90

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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.