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Finding the Fourth Proportional to 200,361.52, 300,652.96 and 111,665.01

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Solution

The fourth proportional to 200,361.52, 300,652.96 and 111,665.01 is: 167,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,361.52 : 300,652.96 = 111,665.01 : x
  2. Step 2: Convert to fraction form
    200,361.52/300,652.96 = 111,665.01/x
  3. Step 3: Cross multiply
    200,361.52x = 300,652.96 × 111,665.01
  4. Step 4: Simplify right side
    200,361.52x = 33,572,415,784.93
  5. Step 5: Solve for x
    x = 33,572,415,784.93/200,361.52
  6. Step 6: Final answer
    x = 167,559.20

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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.