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Finding the Fourth Proportional to 321,953.96, 444,264.45 and 178,698.66

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Solution

The fourth proportional to 321,953.96, 444,264.45 and 178,698.66 is: 246,586.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,953.96 : 444,264.45 = 178,698.66 : x
  2. Step 2: Convert to fraction form
    321,953.96/444,264.45 = 178,698.66/x
  3. Step 3: Cross multiply
    321,953.96x = 444,264.45 × 178,698.66
  4. Step 4: Simplify right side
    321,953.96x = 79,389,461,900.64
  5. Step 5: Solve for x
    x = 79,389,461,900.64/321,953.96
  6. Step 6: Final answer
    x = 246,586.39

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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.