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Finding the Fourth Proportional to 221,040, 331,734.72 and 96,468.48

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Solution

The fourth proportional to 221,040, 331,734.72 and 96,468.48 is: 144,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,040 : 331,734.72 = 96,468.48 : x
  2. Step 2: Convert to fraction form
    221,040/331,734.72 = 96,468.48/x
  3. Step 3: Cross multiply
    221,040x = 331,734.72 × 96,468.48
  4. Step 4: Simplify right side
    221,040x = 32,001,944,201.63
  5. Step 5: Solve for x
    x = 32,001,944,201.63/221,040
  6. Step 6: Final answer
    x = 144,778.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.