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Finding the Fourth Proportional to 255,727.20, 383,266.80 and 97,744.80

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Solution

The fourth proportional to 255,727.20, 383,266.80 and 97,744.80 is: 146,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,727.20 : 383,266.80 = 97,744.80 : x
  2. Step 2: Convert to fraction form
    255,727.20/383,266.80 = 97,744.80/x
  3. Step 3: Cross multiply
    255,727.20x = 383,266.80 × 97,744.80
  4. Step 4: Simplify right side
    255,727.20x = 37,462,336,712.64
  5. Step 5: Solve for x
    x = 37,462,336,712.64/255,727.20
  6. Step 6: Final answer
    x = 146,493.36

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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.