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Finding the Fourth Proportional to 119,662.92, 165,127.41 and 65,944.94

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Solution

The fourth proportional to 119,662.92, 165,127.41 and 65,944.94 is: 90,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,662.92 : 165,127.41 = 65,944.94 : x
  2. Step 2: Convert to fraction form
    119,662.92/165,127.41 = 65,944.94/x
  3. Step 3: Cross multiply
    119,662.92x = 165,127.41 × 65,944.94
  4. Step 4: Simplify right side
    119,662.92x = 10,889,316,319.17
  5. Step 5: Solve for x
    x = 10,889,316,319.17/119,662.92
  6. Step 6: Final answer
    x = 90,999.92

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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.