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Finding the Fourth Proportional to 87,477.48, 120,775.92 and 67,297.14

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Solution

The fourth proportional to 87,477.48, 120,775.92 and 67,297.14 is: 92,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,477.48 : 120,775.92 = 67,297.14 : x
  2. Step 2: Convert to fraction form
    87,477.48/120,775.92 = 67,297.14/x
  3. Step 3: Cross multiply
    87,477.48x = 120,775.92 × 67,297.14
  4. Step 4: Simplify right side
    87,477.48x = 8,127,873,996.87
  5. Step 5: Solve for x
    x = 8,127,873,996.87/87,477.48
  6. Step 6: Final answer
    x = 92,913.90

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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.