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Finding the Fourth Proportional to 368,251.88, 508,015.95 and 239,181.17

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Solution

The fourth proportional to 368,251.88, 508,015.95 and 239,181.17 is: 329,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,251.88 : 508,015.95 = 239,181.17 : x
  2. Step 2: Convert to fraction form
    368,251.88/508,015.95 = 239,181.17/x
  3. Step 3: Cross multiply
    368,251.88x = 508,015.95 × 239,181.17
  4. Step 4: Simplify right side
    368,251.88x = 121,507,849,299.66
  5. Step 5: Solve for x
    x = 121,507,849,299.66/368,251.88
  6. Step 6: Final answer
    x = 329,958.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.