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Finding the Fourth Proportional to 552,611.20, 828,963.60 and 153,251.92

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Solution

The fourth proportional to 552,611.20, 828,963.60 and 153,251.92 is: 229,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,611.20 : 828,963.60 = 153,251.92 : x
  2. Step 2: Convert to fraction form
    552,611.20/828,963.60 = 153,251.92/x
  3. Step 3: Cross multiply
    552,611.20x = 828,963.60 × 153,251.92
  4. Step 4: Simplify right side
    552,611.20x = 127,040,263,310.11
  5. Step 5: Solve for x
    x = 127,040,263,310.11/552,611.20
  6. Step 6: Final answer
    x = 229,890.86

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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.