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Finding the Fourth Proportional to 88,936.40, 133,080.60 and 55,672.40

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Solution

The fourth proportional to 88,936.40, 133,080.60 and 55,672.40 is: 83,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,936.40 : 133,080.60 = 55,672.40 : x
  2. Step 2: Convert to fraction form
    88,936.40/133,080.60 = 55,672.40/x
  3. Step 3: Cross multiply
    88,936.40x = 133,080.60 × 55,672.40
  4. Step 4: Simplify right side
    88,936.40x = 7,408,916,395.44
  5. Step 5: Solve for x
    x = 7,408,916,395.44/88,936.40
  6. Step 6: Final answer
    x = 83,305.78

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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.