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Finding the Fourth Proportional to 202,659.40, 303,995.24 and 69,537.76

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Solution

The fourth proportional to 202,659.40, 303,995.24 and 69,537.76 is: 104,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,659.40 : 303,995.24 = 69,537.76 : x
  2. Step 2: Convert to fraction form
    202,659.40/303,995.24 = 69,537.76/x
  3. Step 3: Cross multiply
    202,659.40x = 303,995.24 × 69,537.76
  4. Step 4: Simplify right side
    202,659.40x = 21,139,148,040.26
  5. Step 5: Solve for x
    x = 21,139,148,040.26/202,659.40
  6. Step 6: Final answer
    x = 104,308.75

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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.