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Finding the Fourth Proportional to 356,961.76, 535,333.44 and 120,240.96

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Solution

The fourth proportional to 356,961.76, 535,333.44 and 120,240.96 is: 180,324.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,961.76 : 535,333.44 = 120,240.96 : x
  2. Step 2: Convert to fraction form
    356,961.76/535,333.44 = 120,240.96/x
  3. Step 3: Cross multiply
    356,961.76x = 535,333.44 × 120,240.96
  4. Step 4: Simplify right side
    356,961.76x = 64,369,006,745.70
  5. Step 5: Solve for x
    x = 64,369,006,745.70/356,961.76
  6. Step 6: Final answer
    x = 180,324.66

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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.