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Finding the Fourth Proportional to 112,608.65, 168,939.24 and 32,648.28

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Solution

The fourth proportional to 112,608.65, 168,939.24 and 32,648.28 is: 48,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,608.65 : 168,939.24 = 32,648.28 : x
  2. Step 2: Convert to fraction form
    112,608.65/168,939.24 = 32,648.28/x
  3. Step 3: Cross multiply
    112,608.65x = 168,939.24 × 32,648.28
  4. Step 4: Simplify right side
    112,608.65x = 5,515,575,610.51
  5. Step 5: Solve for x
    x = 5,515,575,610.51/112,608.65
  6. Step 6: Final answer
    x = 48,980.04

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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.