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Finding the Fourth Proportional to 245,755.71, 368,631.43 and 68,262.44

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Solution

The fourth proportional to 245,755.71, 368,631.43 and 68,262.44 is: 102,393.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,755.71 : 368,631.43 = 68,262.44 : x
  2. Step 2: Convert to fraction form
    245,755.71/368,631.43 = 68,262.44/x
  3. Step 3: Cross multiply
    245,755.71x = 368,631.43 × 68,262.44
  4. Step 4: Simplify right side
    245,755.71x = 25,163,680,872.49
  5. Step 5: Solve for x
    x = 25,163,680,872.49/245,755.71
  6. Step 6: Final answer
    x = 102,393.07

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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.