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Finding the Fourth Proportional to 119,921.48, 165,499.14 and 68,950.44

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Solution

The fourth proportional to 119,921.48, 165,499.14 and 68,950.44 is: 95,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,921.48 : 165,499.14 = 68,950.44 : x
  2. Step 2: Convert to fraction form
    119,921.48/165,499.14 = 68,950.44/x
  3. Step 3: Cross multiply
    119,921.48x = 165,499.14 × 68,950.44
  4. Step 4: Simplify right side
    119,921.48x = 11,411,238,522.62
  5. Step 5: Solve for x
    x = 11,411,238,522.62/119,921.48
  6. Step 6: Final answer
    x = 95,155.92

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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.