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Finding the Fourth Proportional to 91,141, 136,772.25 and 35,027.44

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Solution

The fourth proportional to 91,141, 136,772.25 and 35,027.44 is: 52,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,141 : 136,772.25 = 35,027.44 : x
  2. Step 2: Convert to fraction form
    91,141/136,772.25 = 35,027.44/x
  3. Step 3: Cross multiply
    91,141x = 136,772.25 × 35,027.44
  4. Step 4: Simplify right side
    91,141x = 4,790,781,780.54
  5. Step 5: Solve for x
    x = 4,790,781,780.54/91,141
  6. Step 6: Final answer
    x = 52,564.51

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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.