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Finding the Fourth Proportional to 69,999.56, 104,999.40 and 17,409.02

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Solution

The fourth proportional to 69,999.56, 104,999.40 and 17,409.02 is: 26,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,999.56 : 104,999.40 = 17,409.02 : x
  2. Step 2: Convert to fraction form
    69,999.56/104,999.40 = 17,409.02/x
  3. Step 3: Cross multiply
    69,999.56x = 104,999.40 × 17,409.02
  4. Step 4: Simplify right side
    69,999.56x = 1,827,936,654.59
  5. Step 5: Solve for x
    x = 1,827,936,654.59/69,999.56
  6. Step 6: Final answer
    x = 26,113.54

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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.