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Finding the Fourth Proportional to 245,393.74, 368,095.22 and 76,910.33

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Solution

The fourth proportional to 245,393.74, 368,095.22 and 76,910.33 is: 115,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,393.74 : 368,095.22 = 76,910.33 : x
  2. Step 2: Convert to fraction form
    245,393.74/368,095.22 = 76,910.33/x
  3. Step 3: Cross multiply
    245,393.74x = 368,095.22 × 76,910.33
  4. Step 4: Simplify right side
    245,393.74x = 28,310,324,841.62
  5. Step 5: Solve for x
    x = 28,310,324,841.62/245,393.74
  6. Step 6: Final answer
    x = 115,366.94

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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.