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Finding the Fourth Proportional to 173,611.70, 260,436 and 55,255.38

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Solution

The fourth proportional to 173,611.70, 260,436 and 55,255.38 is: 82,888.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,611.70 : 260,436 = 55,255.38 : x
  2. Step 2: Convert to fraction form
    173,611.70/260,436 = 55,255.38/x
  3. Step 3: Cross multiply
    173,611.70x = 260,436 × 55,255.38
  4. Step 4: Simplify right side
    173,611.70x = 14,390,490,145.68
  5. Step 5: Solve for x
    x = 14,390,490,145.68/173,611.70
  6. Step 6: Final answer
    x = 82,888.94

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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.