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Finding the Fourth Proportional to 161,548.60, 242,553.30 and 122,380.60

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Solution

The fourth proportional to 161,548.60, 242,553.30 and 122,380.60 is: 183,745.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,548.60 : 242,553.30 = 122,380.60 : x
  2. Step 2: Convert to fraction form
    161,548.60/242,553.30 = 122,380.60/x
  3. Step 3: Cross multiply
    161,548.60x = 242,553.30 × 122,380.60
  4. Step 4: Simplify right side
    161,548.60x = 29,683,818,385.98
  5. Step 5: Solve for x
    x = 29,683,818,385.98/161,548.60
  6. Step 6: Final answer
    x = 183,745.44

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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.