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Finding the Fourth Proportional to 267,648.80, 401,346.08 and 155,363.44

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Solution

The fourth proportional to 267,648.80, 401,346.08 and 155,363.44 is: 232,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,648.80 : 401,346.08 = 155,363.44 : x
  2. Step 2: Convert to fraction form
    267,648.80/401,346.08 = 155,363.44/x
  3. Step 3: Cross multiply
    267,648.80x = 401,346.08 × 155,363.44
  4. Step 4: Simplify right side
    267,648.80x = 62,354,507,619.32
  5. Step 5: Solve for x
    x = 62,354,507,619.32/267,648.80
  6. Step 6: Final answer
    x = 232,971.37

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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.