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Finding the Fourth Proportional to 111,120.92, 153,396.12 and 70,887.44

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Solution

The fourth proportional to 111,120.92, 153,396.12 and 70,887.44 is: 97,856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,120.92 : 153,396.12 = 70,887.44 : x
  2. Step 2: Convert to fraction form
    111,120.92/153,396.12 = 70,887.44/x
  3. Step 3: Cross multiply
    111,120.92x = 153,396.12 × 70,887.44
  4. Step 4: Simplify right side
    111,120.92x = 10,873,858,252.73
  5. Step 5: Solve for x
    x = 10,873,858,252.73/111,120.92
  6. Step 6: Final answer
    x = 97,856.09

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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.