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Finding the Fourth Proportional to 91,124.88, 136,622.52 and 34,917.36

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Solution

The fourth proportional to 91,124.88, 136,622.52 and 34,917.36 is: 52,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,124.88 : 136,622.52 = 34,917.36 : x
  2. Step 2: Convert to fraction form
    91,124.88/136,622.52 = 34,917.36/x
  3. Step 3: Cross multiply
    91,124.88x = 136,622.52 × 34,917.36
  4. Step 4: Simplify right side
    91,124.88x = 4,770,497,714.95
  5. Step 5: Solve for x
    x = 4,770,497,714.95/91,124.88
  6. Step 6: Final answer
    x = 52,351.21

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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.