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Finding the Fourth Proportional to 69,333.30, 103,905.72 and 29,319.03

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Solution

The fourth proportional to 69,333.30, 103,905.72 and 29,319.03 is: 43,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,333.30 : 103,905.72 = 29,319.03 : x
  2. Step 2: Convert to fraction form
    69,333.30/103,905.72 = 29,319.03/x
  3. Step 3: Cross multiply
    69,333.30x = 103,905.72 × 29,319.03
  4. Step 4: Simplify right side
    69,333.30x = 3,046,414,921.85
  5. Step 5: Solve for x
    x = 3,046,414,921.85/69,333.30
  6. Step 6: Final answer
    x = 43,938.70

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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.