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Finding the Fourth Proportional to 246,472.57, 340,135.45 and 139,042.27

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Solution

The fourth proportional to 246,472.57, 340,135.45 and 139,042.27 is: 191,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,472.57 : 340,135.45 = 139,042.27 : x
  2. Step 2: Convert to fraction form
    246,472.57/340,135.45 = 139,042.27/x
  3. Step 3: Cross multiply
    246,472.57x = 340,135.45 × 139,042.27
  4. Step 4: Simplify right side
    246,472.57x = 47,293,205,935.15
  5. Step 5: Solve for x
    x = 47,293,205,935.15/246,472.57
  6. Step 6: Final answer
    x = 191,880.20

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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.