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Finding the Fourth Proportional to 251,661.60, 377,045.28 and 133,414.56

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Solution

The fourth proportional to 251,661.60, 377,045.28 and 133,414.56 is: 199,884.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,661.60 : 377,045.28 = 133,414.56 : x
  2. Step 2: Convert to fraction form
    251,661.60/377,045.28 = 133,414.56/x
  3. Step 3: Cross multiply
    251,661.60x = 377,045.28 × 133,414.56
  4. Step 4: Simplify right side
    251,661.60x = 50,303,330,131.28
  5. Step 5: Solve for x
    x = 50,303,330,131.28/251,661.60
  6. Step 6: Final answer
    x = 199,884.81

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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.