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Finding the Fourth Proportional to 69,969.44, 104,902.32 and 42,260.96

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Solution

The fourth proportional to 69,969.44, 104,902.32 and 42,260.96 is: 63,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,969.44 : 104,902.32 = 42,260.96 : x
  2. Step 2: Convert to fraction form
    69,969.44/104,902.32 = 42,260.96/x
  3. Step 3: Cross multiply
    69,969.44x = 104,902.32 × 42,260.96
  4. Step 4: Simplify right side
    69,969.44x = 4,433,272,749.43
  5. Step 5: Solve for x
    x = 4,433,272,749.43/69,969.44
  6. Step 6: Final answer
    x = 63,360.13

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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.