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Finding the Fourth Proportional to 112,388.50, 168,582.75 and 29,282.50

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Solution

The fourth proportional to 112,388.50, 168,582.75 and 29,282.50 is: 43,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,388.50 : 168,582.75 = 29,282.50 : x
  2. Step 2: Convert to fraction form
    112,388.50/168,582.75 = 29,282.50/x
  3. Step 3: Cross multiply
    112,388.50x = 168,582.75 × 29,282.50
  4. Step 4: Simplify right side
    112,388.50x = 4,936,524,376.88
  5. Step 5: Solve for x
    x = 4,936,524,376.88/112,388.50
  6. Step 6: Final answer
    x = 43,923.75

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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.