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Finding the Fourth Proportional to 84,787.32, 127,198.98 and 32,195.64

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Solution

The fourth proportional to 84,787.32, 127,198.98 and 32,195.64 is: 48,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,787.32 : 127,198.98 = 32,195.64 : x
  2. Step 2: Convert to fraction form
    84,787.32/127,198.98 = 32,195.64/x
  3. Step 3: Cross multiply
    84,787.32x = 127,198.98 × 32,195.64
  4. Step 4: Simplify right side
    84,787.32x = 4,095,252,568.45
  5. Step 5: Solve for x
    x = 4,095,252,568.45/84,787.32
  6. Step 6: Final answer
    x = 48,300.30

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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.