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Finding the Fourth Proportional to 66,281.31, 99,260.37 and 50,469.30

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Solution

The fourth proportional to 66,281.31, 99,260.37 and 50,469.30 is: 75,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,281.31 : 99,260.37 = 50,469.30 : x
  2. Step 2: Convert to fraction form
    66,281.31/99,260.37 = 50,469.30/x
  3. Step 3: Cross multiply
    66,281.31x = 99,260.37 × 50,469.30
  4. Step 4: Simplify right side
    66,281.31x = 5,009,601,391.64
  5. Step 5: Solve for x
    x = 5,009,601,391.64/66,281.31
  6. Step 6: Final answer
    x = 75,580.90

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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.