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Finding the Fourth Proportional to 73,281.30, 109,900.35 and 28,893.30

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Solution

The fourth proportional to 73,281.30, 109,900.35 and 28,893.30 is: 43,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,281.30 : 109,900.35 = 28,893.30 : x
  2. Step 2: Convert to fraction form
    73,281.30/109,900.35 = 28,893.30/x
  3. Step 3: Cross multiply
    73,281.30x = 109,900.35 × 28,893.30
  4. Step 4: Simplify right side
    73,281.30x = 3,175,383,782.66
  5. Step 5: Solve for x
    x = 3,175,383,782.66/73,281.30
  6. Step 6: Final answer
    x = 43,331.43

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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.