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Finding the Fourth Proportional to 201,337.11, 301,998.70 and 51,578.87

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Solution

The fourth proportional to 201,337.11, 301,998.70 and 51,578.87 is: 77,366.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,337.11 : 301,998.70 = 51,578.87 : x
  2. Step 2: Convert to fraction form
    201,337.11/301,998.70 = 51,578.87/x
  3. Step 3: Cross multiply
    201,337.11x = 301,998.70 × 51,578.87
  4. Step 4: Simplify right side
    201,337.11x = 15,576,751,687.47
  5. Step 5: Solve for x
    x = 15,576,751,687.47/201,337.11
  6. Step 6: Final answer
    x = 77,366.52

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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.