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Finding the Fourth Proportional to 321,875.52, 444,185.01 and 178,631.88

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Solution

The fourth proportional to 321,875.52, 444,185.01 and 178,631.88 is: 246,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,875.52 : 444,185.01 = 178,631.88 : x
  2. Step 2: Convert to fraction form
    321,875.52/444,185.01 = 178,631.88/x
  3. Step 3: Cross multiply
    321,875.52x = 444,185.01 × 178,631.88
  4. Step 4: Simplify right side
    321,875.52x = 79,345,603,404.12
  5. Step 5: Solve for x
    x = 79,345,603,404.12/321,875.52
  6. Step 6: Final answer
    x = 246,510.21

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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.