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Finding the Fourth Proportional to 202,369.19, 279,269.90 and 111,725.33

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Solution

The fourth proportional to 202,369.19, 279,269.90 and 111,725.33 is: 154,181.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,369.19 : 279,269.90 = 111,725.33 : x
  2. Step 2: Convert to fraction form
    202,369.19/279,269.90 = 111,725.33/x
  3. Step 3: Cross multiply
    202,369.19x = 279,269.90 × 111,725.33
  4. Step 4: Simplify right side
    202,369.19x = 31,201,522,871.13
  5. Step 5: Solve for x
    x = 31,201,522,871.13/202,369.19
  6. Step 6: Final answer
    x = 154,181.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.