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Finding the Fourth Proportional to 356,684.85, 535,027.28 and 120,002.85

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Solution

The fourth proportional to 356,684.85, 535,027.28 and 120,002.85 is: 180,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,684.85 : 535,027.28 = 120,002.85 : x
  2. Step 2: Convert to fraction form
    356,684.85/535,027.28 = 120,002.85/x
  3. Step 3: Cross multiply
    356,684.85x = 535,027.28 × 120,002.85
  4. Step 4: Simplify right side
    356,684.85x = 64,204,797,827.73
  5. Step 5: Solve for x
    x = 64,204,797,827.73/356,684.85
  6. Step 6: Final answer
    x = 180,004.28

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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.