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Finding the Fourth Proportional to 245,706.62, 368,518.82 and 68,231.57

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Solution

The fourth proportional to 245,706.62, 368,518.82 and 68,231.57 is: 102,335.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,706.62 : 368,518.82 = 68,231.57 : x
  2. Step 2: Convert to fraction form
    245,706.62/368,518.82 = 68,231.57/x
  3. Step 3: Cross multiply
    245,706.62x = 368,518.82 × 68,231.57
  4. Step 4: Simplify right side
    245,706.62x = 25,144,615,479.40
  5. Step 5: Solve for x
    x = 25,144,615,479.40/245,706.62
  6. Step 6: Final answer
    x = 102,335.93

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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.