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Finding the Fourth Proportional to 119,873.91, 165,421.26 and 68,894.94

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Solution

The fourth proportional to 119,873.91, 165,421.26 and 68,894.94 is: 95,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,873.91 : 165,421.26 = 68,894.94 : x
  2. Step 2: Convert to fraction form
    119,873.91/165,421.26 = 68,894.94/x
  3. Step 3: Cross multiply
    119,873.91x = 165,421.26 × 68,894.94
  4. Step 4: Simplify right side
    119,873.91x = 11,396,688,363.90
  5. Step 5: Solve for x
    x = 11,396,688,363.90/119,873.91
  6. Step 6: Final answer
    x = 95,072.30

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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.