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Finding the Fourth Proportional to 250,620.67, 376,008.95 and 82,142.47

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Solution

The fourth proportional to 250,620.67, 376,008.95 and 82,142.47 is: 123,239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,620.67 : 376,008.95 = 82,142.47 : x
  2. Step 2: Convert to fraction form
    250,620.67/376,008.95 = 82,142.47/x
  3. Step 3: Cross multiply
    250,620.67x = 376,008.95 × 82,142.47
  4. Step 4: Simplify right side
    250,620.67x = 30,886,303,895.11
  5. Step 5: Solve for x
    x = 30,886,303,895.11/250,620.67
  6. Step 6: Final answer
    x = 123,239.25

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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.