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Finding the Fourth Proportional to 324,573.20, 486,629.40 and 124,816.40

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Solution

The fourth proportional to 324,573.20, 486,629.40 and 124,816.40 is: 187,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,573.20 : 486,629.40 = 124,816.40 : x
  2. Step 2: Convert to fraction form
    324,573.20/486,629.40 = 124,816.40/x
  3. Step 3: Cross multiply
    324,573.20x = 486,629.40 × 124,816.40
  4. Step 4: Simplify right side
    324,573.20x = 60,739,329,842.16
  5. Step 5: Solve for x
    x = 60,739,329,842.16/324,573.20
  6. Step 6: Final answer
    x = 187,136.00

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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.