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Finding the Fourth Proportional to 202,622.51, 303,939.92 and 69,500.85

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Solution

The fourth proportional to 202,622.51, 303,939.92 and 69,500.85 is: 104,253.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,622.51 : 303,939.92 = 69,500.85 : x
  2. Step 2: Convert to fraction form
    202,622.51/303,939.92 = 69,500.85/x
  3. Step 3: Cross multiply
    202,622.51x = 303,939.92 × 69,500.85
  4. Step 4: Simplify right side
    202,622.51x = 21,124,082,054.85
  5. Step 5: Solve for x
    x = 21,124,082,054.85/202,622.51
  6. Step 6: Final answer
    x = 104,253.38

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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.