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Finding the Fourth Proportional to 119,571.66, 165,009.94 and 65,858.52

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Solution

The fourth proportional to 119,571.66, 165,009.94 and 65,858.52 is: 90,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,571.66 : 165,009.94 = 65,858.52 : x
  2. Step 2: Convert to fraction form
    119,571.66/165,009.94 = 65,858.52/x
  3. Step 3: Cross multiply
    119,571.66x = 165,009.94 × 65,858.52
  4. Step 4: Simplify right side
    119,571.66x = 10,867,310,433.69
  5. Step 5: Solve for x
    x = 10,867,310,433.69/119,571.66
  6. Step 6: Final answer
    x = 90,885.34

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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.