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Finding the Fourth Proportional to 111,725.74, 154,137.90 and 63,953.56

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Solution

The fourth proportional to 111,725.74, 154,137.90 and 63,953.56 is: 88,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,725.74 : 154,137.90 = 63,953.56 : x
  2. Step 2: Convert to fraction form
    111,725.74/154,137.90 = 63,953.56/x
  3. Step 3: Cross multiply
    111,725.74x = 154,137.90 × 63,953.56
  4. Step 4: Simplify right side
    111,725.74x = 9,857,667,435.92
  5. Step 5: Solve for x
    x = 9,857,667,435.92/111,725.74
  6. Step 6: Final answer
    x = 88,230.94

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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.