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Finding the Fourth Proportional to 193,330.80, 289,996.20 and 51,175.80

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Solution

The fourth proportional to 193,330.80, 289,996.20 and 51,175.80 is: 76,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,330.80 : 289,996.20 = 51,175.80 : x
  2. Step 2: Convert to fraction form
    193,330.80/289,996.20 = 51,175.80/x
  3. Step 3: Cross multiply
    193,330.80x = 289,996.20 × 51,175.80
  4. Step 4: Simplify right side
    193,330.80x = 14,840,787,531.96
  5. Step 5: Solve for x
    x = 14,840,787,531.96/193,330.80
  6. Step 6: Final answer
    x = 76,763.70

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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.