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Finding the Fourth Proportional to 250,966.81, 376,370.43 and 82,448.07

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Solution

The fourth proportional to 250,966.81, 376,370.43 and 82,448.07 is: 123,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,966.81 : 376,370.43 = 82,448.07 : x
  2. Step 2: Convert to fraction form
    250,966.81/376,370.43 = 82,448.07/x
  3. Step 3: Cross multiply
    250,966.81x = 376,370.43 × 82,448.07
  4. Step 4: Simplify right side
    250,966.81x = 31,031,015,558.57
  5. Step 5: Solve for x
    x = 31,031,015,558.57/250,966.81
  6. Step 6: Final answer
    x = 123,645.89

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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.