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Finding the Fourth Proportional to 245,713.62, 368,529.31 and 68,238.57

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Solution

The fourth proportional to 245,713.62, 368,529.31 and 68,238.57 is: 102,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,713.62 : 368,529.31 = 68,238.57 : x
  2. Step 2: Convert to fraction form
    245,713.62/368,529.31 = 68,238.57/x
  3. Step 3: Cross multiply
    245,713.62x = 368,529.31 × 68,238.57
  4. Step 4: Simplify right side
    245,713.62x = 25,147,913,117.49
  5. Step 5: Solve for x
    x = 25,147,913,117.49/245,713.62
  6. Step 6: Final answer
    x = 102,346.44

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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.