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Finding the Fourth Proportional to 269,158.56, 403,800.36 and 91,667.08

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Solution

The fourth proportional to 269,158.56, 403,800.36 and 91,667.08 is: 137,521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,158.56 : 403,800.36 = 91,667.08 : x
  2. Step 2: Convert to fraction form
    269,158.56/403,800.36 = 91,667.08/x
  3. Step 3: Cross multiply
    269,158.56x = 403,800.36 × 91,667.08
  4. Step 4: Simplify right side
    269,158.56x = 37,015,199,904.15
  5. Step 5: Solve for x
    x = 37,015,199,904.15/269,158.56
  6. Step 6: Final answer
    x = 137,521.91

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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.