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Finding the Fourth Proportional to 107,143.92, 147,979.62 and 73,093.92

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Solution

The fourth proportional to 107,143.92, 147,979.62 and 73,093.92 is: 100,952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,143.92 : 147,979.62 = 73,093.92 : x
  2. Step 2: Convert to fraction form
    107,143.92/147,979.62 = 73,093.92/x
  3. Step 3: Cross multiply
    107,143.92x = 147,979.62 × 73,093.92
  4. Step 4: Simplify right side
    107,143.92x = 10,816,410,505.91
  5. Step 5: Solve for x
    x = 10,816,410,505.91/107,143.92
  6. Step 6: Final answer
    x = 100,952.16

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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.