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Finding the Fourth Proportional to 339,275.72, 508,138.41 and 161,907.29

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Solution

The fourth proportional to 339,275.72, 508,138.41 and 161,907.29 is: 242,491.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,275.72 : 508,138.41 = 161,907.29 : x
  2. Step 2: Convert to fraction form
    339,275.72/508,138.41 = 161,907.29/x
  3. Step 3: Cross multiply
    339,275.72x = 508,138.41 × 161,907.29
  4. Step 4: Simplify right side
    339,275.72x = 82,271,312,879.99
  5. Step 5: Solve for x
    x = 82,271,312,879.99/339,275.72
  6. Step 6: Final answer
    x = 242,491.01

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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.