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Finding the Fourth Proportional to 321,903.99, 444,248.25 and 178,664.01

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Solution

The fourth proportional to 321,903.99, 444,248.25 and 178,664.01 is: 246,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,903.99 : 444,248.25 = 178,664.01 : x
  2. Step 2: Convert to fraction form
    321,903.99/444,248.25 = 178,664.01/x
  3. Step 3: Cross multiply
    321,903.99x = 444,248.25 × 178,664.01
  4. Step 4: Simplify right side
    321,903.99x = 79,371,173,780.48
  5. Step 5: Solve for x
    x = 79,371,173,780.48/321,903.99
  6. Step 6: Final answer
    x = 246,567.85

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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.