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Finding the Fourth Proportional to 171,109.99, 256,579.32 and 52,765.95

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Solution

The fourth proportional to 171,109.99, 256,579.32 and 52,765.95 is: 79,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,109.99 : 256,579.32 = 52,765.95 : x
  2. Step 2: Convert to fraction form
    171,109.99/256,579.32 = 52,765.95/x
  3. Step 3: Cross multiply
    171,109.99x = 256,579.32 × 52,765.95
  4. Step 4: Simplify right side
    171,109.99x = 13,538,651,570.15
  5. Step 5: Solve for x
    x = 13,538,651,570.15/171,109.99
  6. Step 6: Final answer
    x = 79,122.51

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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.