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Finding the Fourth Proportional to 119,892.42, 165,442.57 and 68,905.22

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Solution

The fourth proportional to 119,892.42, 165,442.57 and 68,905.22 is: 95,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,892.42 : 165,442.57 = 68,905.22 : x
  2. Step 2: Convert to fraction form
    119,892.42/165,442.57 = 68,905.22/x
  3. Step 3: Cross multiply
    119,892.42x = 165,442.57 × 68,905.22
  4. Step 4: Simplify right side
    119,892.42x = 11,399,855,683.74
  5. Step 5: Solve for x
    x = 11,399,855,683.74/119,892.42
  6. Step 6: Final answer
    x = 95,084.04

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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.