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Finding the Fourth Proportional to 299,731.55, 449,586.90 and 75,093.89

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Solution

The fourth proportional to 299,731.55, 449,586.90 and 75,093.89 is: 112,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,731.55 : 449,586.90 = 75,093.89 : x
  2. Step 2: Convert to fraction form
    299,731.55/449,586.90 = 75,093.89/x
  3. Step 3: Cross multiply
    299,731.55x = 449,586.90 × 75,093.89
  4. Step 4: Simplify right side
    299,731.55x = 33,761,226,966.11
  5. Step 5: Solve for x
    x = 33,761,226,966.11/299,731.55
  6. Step 6: Final answer
    x = 112,638.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.