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Finding the Fourth Proportional to 191,788.87, 264,672.17 and 106,896.82

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Solution

The fourth proportional to 191,788.87, 264,672.17 and 106,896.82 is: 147,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,788.87 : 264,672.17 = 106,896.82 : x
  2. Step 2: Convert to fraction form
    191,788.87/264,672.17 = 106,896.82/x
  3. Step 3: Cross multiply
    191,788.87x = 264,672.17 × 106,896.82
  4. Step 4: Simplify right side
    191,788.87x = 28,292,613,315.50
  5. Step 5: Solve for x
    x = 28,292,613,315.50/191,788.87
  6. Step 6: Final answer
    x = 147,519.58

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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.