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Finding the Fourth Proportional to 267,646.43, 401,342.51 and 155,361.06

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Solution

The fourth proportional to 267,646.43, 401,342.51 and 155,361.06 is: 232,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,646.43 : 401,342.51 = 155,361.06 : x
  2. Step 2: Convert to fraction form
    267,646.43/401,342.51 = 155,361.06/x
  3. Step 3: Cross multiply
    267,646.43x = 401,342.51 × 155,361.06
  4. Step 4: Simplify right side
    267,646.43x = 62,352,998,165.06
  5. Step 5: Solve for x
    x = 62,352,998,165.06/267,646.43
  6. Step 6: Final answer
    x = 232,967.79

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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.