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Finding the Fourth Proportional to 119,321.64, 164,664.48 and 65,610.11

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Solution

The fourth proportional to 119,321.64, 164,664.48 and 65,610.11 is: 90,542.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,321.64 : 164,664.48 = 65,610.11 : x
  2. Step 2: Convert to fraction form
    119,321.64/164,664.48 = 65,610.11/x
  3. Step 3: Cross multiply
    119,321.64x = 164,664.48 × 65,610.11
  4. Step 4: Simplify right side
    119,321.64x = 10,803,654,317.84
  5. Step 5: Solve for x
    x = 10,803,654,317.84/119,321.64
  6. Step 6: Final answer
    x = 90,542.29

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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.