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Finding the Fourth Proportional to 384,372.52, 576,573.36 and 103,889.88

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Solution

The fourth proportional to 384,372.52, 576,573.36 and 103,889.88 is: 155,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,372.52 : 576,573.36 = 103,889.88 : x
  2. Step 2: Convert to fraction form
    384,372.52/576,573.36 = 103,889.88/x
  3. Step 3: Cross multiply
    384,372.52x = 576,573.36 × 103,889.88
  4. Step 4: Simplify right side
    384,372.52x = 59,900,137,181.60
  5. Step 5: Solve for x
    x = 59,900,137,181.60/384,372.52
  6. Step 6: Final answer
    x = 155,838.76

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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.