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Finding the Fourth Proportional to 247,449.91, 341,488.44 and 145,456.66

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Solution

The fourth proportional to 247,449.91, 341,488.44 and 145,456.66 is: 200,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,449.91 : 341,488.44 = 145,456.66 : x
  2. Step 2: Convert to fraction form
    247,449.91/341,488.44 = 145,456.66/x
  3. Step 3: Cross multiply
    247,449.91x = 341,488.44 × 145,456.66
  4. Step 4: Simplify right side
    247,449.91x = 49,671,767,911.01
  5. Step 5: Solve for x
    x = 49,671,767,911.01/247,449.91
  6. Step 6: Final answer
    x = 200,734.64

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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.