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Finding the Fourth Proportional to 255,711.80, 352,884.67 and 140,994.55

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Solution

The fourth proportional to 255,711.80, 352,884.67 and 140,994.55 is: 194,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,711.80 : 352,884.67 = 140,994.55 : x
  2. Step 2: Convert to fraction form
    255,711.80/352,884.67 = 140,994.55/x
  3. Step 3: Cross multiply
    255,711.80x = 352,884.67 × 140,994.55
  4. Step 4: Simplify right side
    255,711.80x = 49,754,815,626.56
  5. Step 5: Solve for x
    x = 49,754,815,626.56/255,711.80
  6. Step 6: Final answer
    x = 194,573.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.