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Finding the Fourth Proportional to 321,181.61, 443,236.28 and 175,977.89

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Solution

The fourth proportional to 321,181.61, 443,236.28 and 175,977.89 is: 242,852.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,181.61 : 443,236.28 = 175,977.89 : x
  2. Step 2: Convert to fraction form
    321,181.61/443,236.28 = 175,977.89/x
  3. Step 3: Cross multiply
    321,181.61x = 443,236.28 × 175,977.89
  4. Step 4: Simplify right side
    321,181.61x = 77,999,785,633.45
  5. Step 5: Solve for x
    x = 77,999,785,633.45/321,181.61
  6. Step 6: Final answer
    x = 242,852.59

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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.