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Finding the Fourth Proportional to 96,297.60, 133,022.88 and 87,355.20

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Solution

The fourth proportional to 96,297.60, 133,022.88 and 87,355.20 is: 120,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,297.60 : 133,022.88 = 87,355.20 : x
  2. Step 2: Convert to fraction form
    96,297.60/133,022.88 = 87,355.20/x
  3. Step 3: Cross multiply
    96,297.60x = 133,022.88 × 87,355.20
  4. Step 4: Simplify right side
    96,297.60x = 11,620,240,286.98
  5. Step 5: Solve for x
    x = 11,620,240,286.98/96,297.60
  6. Step 6: Final answer
    x = 120,670.09

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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.