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Finding the Fourth Proportional to 339,166.90, 468,052.13 and 211,916.30

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Solution

The fourth proportional to 339,166.90, 468,052.13 and 211,916.30 is: 292,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,166.90 : 468,052.13 = 211,916.30 : x
  2. Step 2: Convert to fraction form
    339,166.90/468,052.13 = 211,916.30/x
  3. Step 3: Cross multiply
    339,166.90x = 468,052.13 × 211,916.30
  4. Step 4: Simplify right side
    339,166.90x = 99,187,875,596.72
  5. Step 5: Solve for x
    x = 99,187,875,596.72/339,166.90
  6. Step 6: Final answer
    x = 292,445.62

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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.