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Finding the Fourth Proportional to 325,640.37, 488,507.88 and 101,018.72

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Solution

The fourth proportional to 325,640.37, 488,507.88 and 101,018.72 is: 151,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,640.37 : 488,507.88 = 101,018.72 : x
  2. Step 2: Convert to fraction form
    325,640.37/488,507.88 = 101,018.72/x
  3. Step 3: Cross multiply
    325,640.37x = 488,507.88 × 101,018.72
  4. Step 4: Simplify right side
    325,640.37x = 49,348,439,778.79
  5. Step 5: Solve for x
    x = 49,348,439,778.79/325,640.37
  6. Step 6: Final answer
    x = 151,542.76

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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.