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Finding the Fourth Proportional to 119,398.44, 164,775.36 and 65,682.48

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Solution

The fourth proportional to 119,398.44, 164,775.36 and 65,682.48 is: 90,644.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,398.44 : 164,775.36 = 65,682.48 : x
  2. Step 2: Convert to fraction form
    119,398.44/164,775.36 = 65,682.48/x
  3. Step 3: Cross multiply
    119,398.44x = 164,775.36 × 65,682.48
  4. Step 4: Simplify right side
    119,398.44x = 10,822,854,287.69
  5. Step 5: Solve for x
    x = 10,822,854,287.69/119,398.44
  6. Step 6: Final answer
    x = 90,644.86

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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.