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Finding the Fourth Proportional to 112,609.65, 168,940.74 and 32,649.28

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Solution

The fourth proportional to 112,609.65, 168,940.74 and 32,649.28 is: 48,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,609.65 : 168,940.74 = 32,649.28 : x
  2. Step 2: Convert to fraction form
    112,609.65/168,940.74 = 32,649.28/x
  3. Step 3: Cross multiply
    112,609.65x = 168,940.74 × 32,649.28
  4. Step 4: Simplify right side
    112,609.65x = 5,515,793,523.67
  5. Step 5: Solve for x
    x = 5,515,793,523.67/112,609.65
  6. Step 6: Final answer
    x = 48,981.54

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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.