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Finding the Fourth Proportional to 246,216.40, 369,319.20 and 68,718.40

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Solution

The fourth proportional to 246,216.40, 369,319.20 and 68,718.40 is: 103,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,216.40 : 369,319.20 = 68,718.40 : x
  2. Step 2: Convert to fraction form
    246,216.40/369,319.20 = 68,718.40/x
  3. Step 3: Cross multiply
    246,216.40x = 369,319.20 × 68,718.40
  4. Step 4: Simplify right side
    246,216.40x = 25,379,024,513.28
  5. Step 5: Solve for x
    x = 25,379,024,513.28/246,216.40
  6. Step 6: Final answer
    x = 103,076.09

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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.