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Finding the Fourth Proportional to 202,580.96, 279,564.21 and 111,936.13

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Solution

The fourth proportional to 202,580.96, 279,564.21 and 111,936.13 is: 154,473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,580.96 : 279,564.21 = 111,936.13 : x
  2. Step 2: Convert to fraction form
    202,580.96/279,564.21 = 111,936.13/x
  3. Step 3: Cross multiply
    202,580.96x = 279,564.21 × 111,936.13
  4. Step 4: Simplify right side
    202,580.96x = 31,293,335,055.00
  5. Step 5: Solve for x
    x = 31,293,335,055.00/202,580.96
  6. Step 6: Final answer
    x = 154,473.23

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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.