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Finding the Fourth Proportional to 171,495.58, 257,253.08 and 53,183.74

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Solution

The fourth proportional to 171,495.58, 257,253.08 and 53,183.74 is: 79,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,495.58 : 257,253.08 = 53,183.74 : x
  2. Step 2: Convert to fraction form
    171,495.58/257,253.08 = 53,183.74/x
  3. Step 3: Cross multiply
    171,495.58x = 257,253.08 × 53,183.74
  4. Step 4: Simplify right side
    171,495.58x = 13,681,680,920.92
  5. Step 5: Solve for x
    x = 13,681,680,920.92/171,495.58
  6. Step 6: Final answer
    x = 79,778.62

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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.