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Finding the Fourth Proportional to 324,802.62, 487,079.10 and 111,530.88

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Solution

The fourth proportional to 324,802.62, 487,079.10 and 111,530.88 is: 167,253.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,802.62 : 487,079.10 = 111,530.88 : x
  2. Step 2: Convert to fraction form
    324,802.62/487,079.10 = 111,530.88/x
  3. Step 3: Cross multiply
    324,802.62x = 487,079.10 × 111,530.88
  4. Step 4: Simplify right side
    324,802.62x = 54,324,360,652.61
  5. Step 5: Solve for x
    x = 54,324,360,652.61/324,802.62
  6. Step 6: Final answer
    x = 167,253.46

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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.