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Finding the Fourth Proportional to 347,910.15, 521,879.03 and 165,497.15

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Solution

The fourth proportional to 347,910.15, 521,879.03 and 165,497.15 is: 248,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,910.15 : 521,879.03 = 165,497.15 : x
  2. Step 2: Convert to fraction form
    347,910.15/521,879.03 = 165,497.15/x
  3. Step 3: Cross multiply
    347,910.15x = 521,879.03 × 165,497.15
  4. Step 4: Simplify right side
    347,910.15x = 86,369,490,629.93
  5. Step 5: Solve for x
    x = 86,369,490,629.93/347,910.15
  6. Step 6: Final answer
    x = 248,252.29

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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.