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Finding the Fourth Proportional to 200,369.06, 276,507.33 and 108,487.90

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Solution

The fourth proportional to 200,369.06, 276,507.33 and 108,487.90 is: 149,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,369.06 : 276,507.33 = 108,487.90 : x
  2. Step 2: Convert to fraction form
    200,369.06/276,507.33 = 108,487.90/x
  3. Step 3: Cross multiply
    200,369.06x = 276,507.33 × 108,487.90
  4. Step 4: Simplify right side
    200,369.06x = 29,997,698,560.00
  5. Step 5: Solve for x
    x = 29,997,698,560.00/200,369.06
  6. Step 6: Final answer
    x = 149,712.23

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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.