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Finding the Fourth Proportional to 171,468.17, 257,202.28 and 71,573.87

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Solution

The fourth proportional to 171,468.17, 257,202.28 and 71,573.87 is: 107,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,468.17 : 257,202.28 = 71,573.87 : x
  2. Step 2: Convert to fraction form
    171,468.17/257,202.28 = 71,573.87/x
  3. Step 3: Cross multiply
    171,468.17x = 257,202.28 × 71,573.87
  4. Step 4: Simplify right side
    171,468.17x = 18,408,962,552.42
  5. Step 5: Solve for x
    x = 18,408,962,552.42/171,468.17
  6. Step 6: Final answer
    x = 107,360.82

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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.