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Finding the Fourth Proportional to 191,785.87, 264,668.03 and 106,893.82

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Solution

The fourth proportional to 191,785.87, 264,668.03 and 106,893.82 is: 147,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,785.87 : 264,668.03 = 106,893.82 : x
  2. Step 2: Convert to fraction form
    191,785.87/264,668.03 = 106,893.82/x
  3. Step 3: Cross multiply
    191,785.87x = 264,668.03 × 106,893.82
  4. Step 4: Simplify right side
    191,785.87x = 28,291,376,758.57
  5. Step 5: Solve for x
    x = 28,291,376,758.57/191,785.87
  6. Step 6: Final answer
    x = 147,515.44

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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.