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Finding the Fourth Proportional to 171,647.10, 257,473.04 and 53,310.96

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Solution

The fourth proportional to 171,647.10, 257,473.04 and 53,310.96 is: 79,967.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,647.10 : 257,473.04 = 53,310.96 : x
  2. Step 2: Convert to fraction form
    171,647.10/257,473.04 = 53,310.96/x
  3. Step 3: Cross multiply
    171,647.10x = 257,473.04 × 53,310.96
  4. Step 4: Simplify right side
    171,647.10x = 13,726,134,669.96
  5. Step 5: Solve for x
    x = 13,726,134,669.96/171,647.10
  6. Step 6: Final answer
    x = 79,967.18

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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.