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Finding the Fourth Proportional to 267,888.36, 401,553.07 and 90,334.32

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Solution

The fourth proportional to 267,888.36, 401,553.07 and 90,334.32 is: 135,407.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,888.36 : 401,553.07 = 90,334.32 : x
  2. Step 2: Convert to fraction form
    267,888.36/401,553.07 = 90,334.32/x
  3. Step 3: Cross multiply
    267,888.36x = 401,553.07 × 90,334.32
  4. Step 4: Simplify right side
    267,888.36x = 36,274,021,288.76
  5. Step 5: Solve for x
    x = 36,274,021,288.76/267,888.36
  6. Step 6: Final answer
    x = 135,407.23

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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.