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Finding the Fourth Proportional to 207,691.48, 286,614.06 and 112,198.12

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Solution

The fourth proportional to 207,691.48, 286,614.06 and 112,198.12 is: 154,833.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,691.48 : 286,614.06 = 112,198.12 : x
  2. Step 2: Convert to fraction form
    207,691.48/286,614.06 = 112,198.12/x
  3. Step 3: Cross multiply
    207,691.48x = 286,614.06 × 112,198.12
  4. Step 4: Simplify right side
    207,691.48x = 32,157,558,697.57
  5. Step 5: Solve for x
    x = 32,157,558,697.57/207,691.48
  6. Step 6: Final answer
    x = 154,833.31

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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.