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Finding the Fourth Proportional to 119,163.52, 178,820.61 and 66,607.48

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Solution

The fourth proportional to 119,163.52, 178,820.61 and 66,607.48 is: 99,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,163.52 : 178,820.61 = 66,607.48 : x
  2. Step 2: Convert to fraction form
    119,163.52/178,820.61 = 66,607.48/x
  3. Step 3: Cross multiply
    119,163.52x = 178,820.61 × 66,607.48
  4. Step 4: Simplify right side
    119,163.52x = 11,910,790,204.16
  5. Step 5: Solve for x
    x = 11,910,790,204.16/119,163.52
  6. Step 6: Final answer
    x = 99,953.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.