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Finding the Fourth Proportional to 247,449.98, 341,488.54 and 145,456.73

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Solution

The fourth proportional to 247,449.98, 341,488.54 and 145,456.73 is: 200,734.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,449.98 : 341,488.54 = 145,456.73 : x
  2. Step 2: Convert to fraction form
    247,449.98/341,488.54 = 145,456.73/x
  3. Step 3: Cross multiply
    247,449.98x = 341,488.54 × 145,456.73
  4. Step 4: Simplify right side
    247,449.98x = 49,671,803,926.15
  5. Step 5: Solve for x
    x = 49,671,803,926.15/247,449.98
  6. Step 6: Final answer
    x = 200,734.73

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1.5x scale

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.