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Finding the Fourth Proportional to 171,927.70, 257,891.55 and 157,153.30

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Solution

The fourth proportional to 171,927.70, 257,891.55 and 157,153.30 is: 235,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,927.70 : 257,891.55 = 157,153.30 : x
  2. Step 2: Convert to fraction form
    171,927.70/257,891.55 = 157,153.30/x
  3. Step 3: Cross multiply
    171,927.70x = 257,891.55 × 157,153.30
  4. Step 4: Simplify right side
    171,927.70x = 40,528,508,124.62
  5. Step 5: Solve for x
    x = 40,528,508,124.62/171,927.70
  6. Step 6: Final answer
    x = 235,729.95

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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.