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Finding the Fourth Proportional to 188,308.44, 259,864.47 and 112,856.94

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Solution

The fourth proportional to 188,308.44, 259,864.47 and 112,856.94 is: 155,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,308.44 : 259,864.47 = 112,856.94 : x
  2. Step 2: Convert to fraction form
    188,308.44/259,864.47 = 112,856.94/x
  3. Step 3: Cross multiply
    188,308.44x = 259,864.47 × 112,856.94
  4. Step 4: Simplify right side
    188,308.44x = 29,327,508,898.92
  5. Step 5: Solve for x
    x = 29,327,508,898.92/188,308.44
  6. Step 6: Final answer
    x = 155,741.87

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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.