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Finding the Fourth Proportional to 321,610.84, 443,850.21 and 178,417.01

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Solution

The fourth proportional to 321,610.84, 443,850.21 and 178,417.01 is: 246,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,610.84 : 443,850.21 = 178,417.01 : x
  2. Step 2: Convert to fraction form
    321,610.84/443,850.21 = 178,417.01/x
  3. Step 3: Cross multiply
    321,610.84x = 443,850.21 × 178,417.01
  4. Step 4: Simplify right side
    321,610.84x = 79,190,428,465.70
  5. Step 5: Solve for x
    x = 79,190,428,465.70/321,610.84
  6. Step 6: Final answer
    x = 246,230.60

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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.