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Finding the Fourth Proportional to 136,062.31, 203,899.64 and 100,241.93

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Solution

The fourth proportional to 136,062.31, 203,899.64 and 100,241.93 is: 150,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,062.31 : 203,899.64 = 100,241.93 : x
  2. Step 2: Convert to fraction form
    136,062.31/203,899.64 = 100,241.93/x
  3. Step 3: Cross multiply
    136,062.31x = 203,899.64 × 100,241.93
  4. Step 4: Simplify right side
    136,062.31x = 20,439,293,439.91
  5. Step 5: Solve for x
    x = 20,439,293,439.91/136,062.31
  6. Step 6: Final answer
    x = 150,220.10

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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.