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Finding the Fourth Proportional to 321,798.36, 444,046.14 and 178,522.68

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Solution

The fourth proportional to 321,798.36, 444,046.14 and 178,522.68 is: 246,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,798.36 : 444,046.14 = 178,522.68 : x
  2. Step 2: Convert to fraction form
    321,798.36/444,046.14 = 178,522.68/x
  3. Step 3: Cross multiply
    321,798.36x = 444,046.14 × 178,522.68
  4. Step 4: Simplify right side
    321,798.36x = 79,272,306,956.46
  5. Step 5: Solve for x
    x = 79,272,306,956.46/321,798.36
  6. Step 6: Final answer
    x = 246,341.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.