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Finding the Fourth Proportional to 247,290.48, 341,135.28 and 156,493.44

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Solution

The fourth proportional to 247,290.48, 341,135.28 and 156,493.44 is: 215,881.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,290.48 : 341,135.28 = 156,493.44 : x
  2. Step 2: Convert to fraction form
    247,290.48/341,135.28 = 156,493.44/x
  3. Step 3: Cross multiply
    247,290.48x = 341,135.28 × 156,493.44
  4. Step 4: Simplify right side
    247,290.48x = 53,385,433,472.56
  5. Step 5: Solve for x
    x = 53,385,433,472.56/247,290.48
  6. Step 6: Final answer
    x = 215,881.47

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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.