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Finding the Fourth Proportional to 123,841.66, 185,606.16 and 67,564.48

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Solution

The fourth proportional to 123,841.66, 185,606.16 and 67,564.48 is: 101,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,841.66 : 185,606.16 = 67,564.48 : x
  2. Step 2: Convert to fraction form
    123,841.66/185,606.16 = 67,564.48/x
  3. Step 3: Cross multiply
    123,841.66x = 185,606.16 × 67,564.48
  4. Step 4: Simplify right side
    123,841.66x = 12,540,383,685.20
  5. Step 5: Solve for x
    x = 12,540,383,685.20/123,841.66
  6. Step 6: Final answer
    x = 101,261.43

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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.