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Finding the Fourth Proportional to 267,659.79, 401,362.60 and 155,374.44

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Solution

The fourth proportional to 267,659.79, 401,362.60 and 155,374.44 is: 232,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,659.79 : 401,362.60 = 155,374.44 : x
  2. Step 2: Convert to fraction form
    267,659.79/401,362.60 = 155,374.44/x
  3. Step 3: Cross multiply
    267,659.79x = 401,362.60 × 155,374.44
  4. Step 4: Simplify right side
    267,659.79x = 62,361,489,211.94
  5. Step 5: Solve for x
    x = 62,361,489,211.94/267,659.79
  6. Step 6: Final answer
    x = 232,987.89

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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.