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Finding the Fourth Proportional to 125,636.31, 188,489.64 and 50,809.01

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Solution

The fourth proportional to 125,636.31, 188,489.64 and 50,809.01 is: 76,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,636.31 : 188,489.64 = 50,809.01 : x
  2. Step 2: Convert to fraction form
    125,636.31/188,489.64 = 50,809.01/x
  3. Step 3: Cross multiply
    125,636.31x = 188,489.64 × 50,809.01
  4. Step 4: Simplify right side
    125,636.31x = 9,576,971,061.21
  5. Step 5: Solve for x
    x = 9,576,971,061.21/125,636.31
  6. Step 6: Final answer
    x = 76,227.73

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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.