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Finding the Fourth Proportional to 339,371.28, 508,281.90 and 162,002.85

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Solution

The fourth proportional to 339,371.28, 508,281.90 and 162,002.85 is: 242,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,371.28 : 508,281.90 = 162,002.85 : x
  2. Step 2: Convert to fraction form
    339,371.28/508,281.90 = 162,002.85/x
  3. Step 3: Cross multiply
    339,371.28x = 508,281.90 × 162,002.85
  4. Step 4: Simplify right side
    339,371.28x = 82,343,113,051.99
  5. Step 5: Solve for x
    x = 82,343,113,051.99/339,371.28
  6. Step 6: Final answer
    x = 242,634.30

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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.