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Finding the Fourth Proportional to 68,468.59, 102,787.46 and 32,479.45

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Solution

The fourth proportional to 68,468.59, 102,787.46 and 32,479.45 is: 48,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,468.59 : 102,787.46 = 32,479.45 : x
  2. Step 2: Convert to fraction form
    68,468.59/102,787.46 = 32,479.45/x
  3. Step 3: Cross multiply
    68,468.59x = 102,787.46 × 32,479.45
  4. Step 4: Simplify right side
    68,468.59x = 3,338,480,448.31
  5. Step 5: Solve for x
    x = 3,338,480,448.31/68,468.59
  6. Step 6: Final answer
    x = 48,759.30

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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.