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Finding the Fourth Proportional to 267,848.56, 401,774.46 and 90,357.31

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Solution

The fourth proportional to 267,848.56, 401,774.46 and 90,357.31 is: 135,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,848.56 : 401,774.46 = 90,357.31 : x
  2. Step 2: Convert to fraction form
    267,848.56/401,774.46 = 90,357.31/x
  3. Step 3: Cross multiply
    267,848.56x = 401,774.46 × 90,357.31
  4. Step 4: Simplify right side
    267,848.56x = 36,303,259,432.30
  5. Step 5: Solve for x
    x = 36,303,259,432.30/267,848.56
  6. Step 6: Final answer
    x = 135,536.51

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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.