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Finding the Fourth Proportional to 324,161.28, 486,259.20 and 102,528

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Solution

The fourth proportional to 324,161.28, 486,259.20 and 102,528 is: 153,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,161.28 : 486,259.20 = 102,528 : x
  2. Step 2: Convert to fraction form
    324,161.28/486,259.20 = 102,528/x
  3. Step 3: Cross multiply
    324,161.28x = 486,259.20 × 102,528
  4. Step 4: Simplify right side
    324,161.28x = 49,855,183,257.60
  5. Step 5: Solve for x
    x = 49,855,183,257.60/324,161.28
  6. Step 6: Final answer
    x = 153,797.47

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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.