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Finding the Fourth Proportional to 119,676.88, 165,163.59 and 65,971.45

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Solution

The fourth proportional to 119,676.88, 165,163.59 and 65,971.45 is: 91,045.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,676.88 : 165,163.59 = 65,971.45 : x
  2. Step 2: Convert to fraction form
    119,676.88/165,163.59 = 65,971.45/x
  3. Step 3: Cross multiply
    119,676.88x = 165,163.59 × 65,971.45
  4. Step 4: Simplify right side
    119,676.88x = 10,896,081,519.51
  5. Step 5: Solve for x
    x = 10,896,081,519.51/119,676.88
  6. Step 6: Final answer
    x = 91,045.84

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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.