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Finding the Fourth Proportional to 365,139, 547,777.62 and 168,147

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Solution

The fourth proportional to 365,139, 547,777.62 and 168,147 is: 252,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,139 : 547,777.62 = 168,147 : x
  2. Step 2: Convert to fraction form
    365,139/547,777.62 = 168,147/x
  3. Step 3: Cross multiply
    365,139x = 547,777.62 × 168,147
  4. Step 4: Simplify right side
    365,139x = 92,107,163,470.14
  5. Step 5: Solve for x
    x = 92,107,163,470.14/365,139
  6. Step 6: Final answer
    x = 252,252.33

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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.