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Finding the Fourth Proportional to 247,398.54, 341,411.46 and 139,991.02

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Solution

The fourth proportional to 247,398.54, 341,411.46 and 139,991.02 is: 193,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,398.54 : 341,411.46 = 139,991.02 : x
  2. Step 2: Convert to fraction form
    247,398.54/341,411.46 = 139,991.02/x
  3. Step 3: Cross multiply
    247,398.54x = 341,411.46 × 139,991.02
  4. Step 4: Simplify right side
    247,398.54x = 47,794,537,146.59
  5. Step 5: Solve for x
    x = 47,794,537,146.59/247,398.54
  6. Step 6: Final answer
    x = 193,188.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.