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Finding the Fourth Proportional to 245,398.44, 368,105.85 and 67,890.60

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Solution

The fourth proportional to 245,398.44, 368,105.85 and 67,890.60 is: 101,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,398.44 : 368,105.85 = 67,890.60 : x
  2. Step 2: Convert to fraction form
    245,398.44/368,105.85 = 67,890.60/x
  3. Step 3: Cross multiply
    245,398.44x = 368,105.85 × 67,890.60
  4. Step 4: Simplify right side
    245,398.44x = 24,990,927,020.01
  5. Step 5: Solve for x
    x = 24,990,927,020.01/245,398.44
  6. Step 6: Final answer
    x = 101,838.17

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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.