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Finding the Fourth Proportional to 247,652.64, 341,772.12 and 140,208.48

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Solution

The fourth proportional to 247,652.64, 341,772.12 and 140,208.48 is: 193,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,652.64 : 341,772.12 = 140,208.48 : x
  2. Step 2: Convert to fraction form
    247,652.64/341,772.12 = 140,208.48/x
  3. Step 3: Cross multiply
    247,652.64x = 341,772.12 × 140,208.48
  4. Step 4: Simplify right side
    247,652.64x = 47,919,349,451.58
  5. Step 5: Solve for x
    x = 47,919,349,451.58/247,652.64
  6. Step 6: Final answer
    x = 193,494.20

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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.