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Finding the Fourth Proportional to 245,712.62, 368,527.82 and 68,237.57

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Solution

The fourth proportional to 245,712.62, 368,527.82 and 68,237.57 is: 102,344.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,712.62 : 368,527.82 = 68,237.57 : x
  2. Step 2: Convert to fraction form
    245,712.62/368,527.82 = 68,237.57/x
  3. Step 3: Cross multiply
    245,712.62x = 368,527.82 × 68,237.57
  4. Step 4: Simplify right side
    245,712.62x = 25,147,440,730.37
  5. Step 5: Solve for x
    x = 25,147,440,730.37/245,712.62
  6. Step 6: Final answer
    x = 102,344.93

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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.