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Finding the Fourth Proportional to 324,992.96, 487,439.04 and 125,407.04

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Solution

The fourth proportional to 324,992.96, 487,439.04 and 125,407.04 is: 188,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,992.96 : 487,439.04 = 125,407.04 : x
  2. Step 2: Convert to fraction form
    324,992.96/487,439.04 = 125,407.04/x
  3. Step 3: Cross multiply
    324,992.96x = 487,439.04 × 125,407.04
  4. Step 4: Simplify right side
    324,992.96x = 61,128,287,186.84
  5. Step 5: Solve for x
    x = 61,128,287,186.84/324,992.96
  6. Step 6: Final answer
    x = 188,091.11

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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.