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Finding the Fourth Proportional to 255,843.20, 383,764.80 and 233,724.80

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Solution

The fourth proportional to 255,843.20, 383,764.80 and 233,724.80 is: 350,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,843.20 : 383,764.80 = 233,724.80 : x
  2. Step 2: Convert to fraction form
    255,843.20/383,764.80 = 233,724.80/x
  3. Step 3: Cross multiply
    255,843.20x = 383,764.80 × 233,724.80
  4. Step 4: Simplify right side
    255,843.20x = 89,695,351,127.04
  5. Step 5: Solve for x
    x = 89,695,351,127.04/255,843.20
  6. Step 6: Final answer
    x = 350,587.20

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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.