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Finding the Fourth Proportional to 339,282.95, 508,774.97 and 159,419.56

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Solution

The fourth proportional to 339,282.95, 508,774.97 and 159,419.56 is: 239,059.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,282.95 : 508,774.97 = 159,419.56 : x
  2. Step 2: Convert to fraction form
    339,282.95/508,774.97 = 159,419.56/x
  3. Step 3: Cross multiply
    339,282.95x = 508,774.97 × 159,419.56
  4. Step 4: Simplify right side
    339,282.95x = 81,108,681,856.41
  5. Step 5: Solve for x
    x = 81,108,681,856.41/339,282.95
  6. Step 6: Final answer
    x = 239,059.12

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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.