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Finding the Fourth Proportional to 171,395.54, 257,105.31 and 53,051.30

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Solution

The fourth proportional to 171,395.54, 257,105.31 and 53,051.30 is: 79,580.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,395.54 : 257,105.31 = 53,051.30 : x
  2. Step 2: Convert to fraction form
    171,395.54/257,105.31 = 53,051.30/x
  3. Step 3: Cross multiply
    171,395.54x = 257,105.31 × 53,051.30
  4. Step 4: Simplify right side
    171,395.54x = 13,639,770,932.40
  5. Step 5: Solve for x
    x = 13,639,770,932.40/171,395.54
  6. Step 6: Final answer
    x = 79,580.66

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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.