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Finding the Fourth Proportional to 124,062.66, 171,201.36 and 73,077.48

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Solution

The fourth proportional to 124,062.66, 171,201.36 and 73,077.48 is: 100,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,062.66 : 171,201.36 = 73,077.48 : x
  2. Step 2: Convert to fraction form
    124,062.66/171,201.36 = 73,077.48/x
  3. Step 3: Cross multiply
    124,062.66x = 171,201.36 × 73,077.48
  4. Step 4: Simplify right side
    124,062.66x = 12,510,963,961.37
  5. Step 5: Solve for x
    x = 12,510,963,961.37/124,062.66
  6. Step 6: Final answer
    x = 100,843.91

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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.