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Finding the Fourth Proportional to 119,673.11, 165,142.14 and 65,957.96

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Solution

The fourth proportional to 119,673.11, 165,142.14 and 65,957.96 is: 91,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,673.11 : 165,142.14 = 65,957.96 : x
  2. Step 2: Convert to fraction form
    119,673.11/165,142.14 = 65,957.96/x
  3. Step 3: Cross multiply
    119,673.11x = 165,142.14 × 65,957.96
  4. Step 4: Simplify right side
    119,673.11x = 10,892,438,664.43
  5. Step 5: Solve for x
    x = 10,892,438,664.43/119,673.11
  6. Step 6: Final answer
    x = 91,018.26

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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.