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Finding the Fourth Proportional to 371,512.94, 557,269.40 and 91,027.76

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Solution

The fourth proportional to 371,512.94, 557,269.40 and 91,027.76 is: 136,541.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,512.94 : 557,269.40 = 91,027.76 : x
  2. Step 2: Convert to fraction form
    371,512.94/557,269.40 = 91,027.76/x
  3. Step 3: Cross multiply
    371,512.94x = 557,269.40 × 91,027.76
  4. Step 4: Simplify right side
    371,512.94x = 50,726,985,198.54
  5. Step 5: Solve for x
    x = 50,726,985,198.54/371,512.94
  6. Step 6: Final answer
    x = 136,541.64

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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.