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Finding the Fourth Proportional to 117,236.98, 175,671.04 and 90,647.92

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Solution

The fourth proportional to 117,236.98, 175,671.04 and 90,647.92 is: 135,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,236.98 : 175,671.04 = 90,647.92 : x
  2. Step 2: Convert to fraction form
    117,236.98/175,671.04 = 90,647.92/x
  3. Step 3: Cross multiply
    117,236.98x = 175,671.04 × 90,647.92
  4. Step 4: Simplify right side
    117,236.98x = 15,924,214,380.24
  5. Step 5: Solve for x
    x = 15,924,214,380.24/117,236.98
  6. Step 6: Final answer
    x = 135,829.28

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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.