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Finding the Fourth Proportional to 112,057.62, 168,102.83 and 40,983.76

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Solution

The fourth proportional to 112,057.62, 168,102.83 and 40,983.76 is: 61,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,057.62 : 168,102.83 = 40,983.76 : x
  2. Step 2: Convert to fraction form
    112,057.62/168,102.83 = 40,983.76/x
  3. Step 3: Cross multiply
    112,057.62x = 168,102.83 × 40,983.76
  4. Step 4: Simplify right side
    112,057.62x = 6,889,486,040.04
  5. Step 5: Solve for x
    x = 6,889,486,040.04/112,057.62
  6. Step 6: Final answer
    x = 61,481.64

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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.