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Finding the Fourth Proportional to 247,671.64, 341,788.20 and 140,262.58

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Solution

The fourth proportional to 247,671.64, 341,788.20 and 140,262.58 is: 193,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,671.64 : 341,788.20 = 140,262.58 : x
  2. Step 2: Convert to fraction form
    247,671.64/341,788.20 = 140,262.58/x
  3. Step 3: Cross multiply
    247,671.64x = 341,788.20 × 140,262.58
  4. Step 4: Simplify right side
    247,671.64x = 47,940,094,745.56
  5. Step 5: Solve for x
    x = 47,940,094,745.56/247,671.64
  6. Step 6: Final answer
    x = 193,563.12

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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.