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Finding the Fourth Proportional to 356,493.12, 534,793.44 and 154,144.59

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Solution

The fourth proportional to 356,493.12, 534,793.44 and 154,144.59 is: 231,240.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,493.12 : 534,793.44 = 154,144.59 : x
  2. Step 2: Convert to fraction form
    356,493.12/534,793.44 = 154,144.59/x
  3. Step 3: Cross multiply
    356,493.12x = 534,793.44 × 154,144.59
  4. Step 4: Simplify right side
    356,493.12x = 82,435,515,543.49
  5. Step 5: Solve for x
    x = 82,435,515,543.49/356,493.12
  6. Step 6: Final answer
    x = 231,240.13

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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.