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Finding the Fourth Proportional to 240,040, 331,255.20 and 134,056

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Solution

The fourth proportional to 240,040, 331,255.20 and 134,056 is: 184,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,040 : 331,255.20 = 134,056 : x
  2. Step 2: Convert to fraction form
    240,040/331,255.20 = 134,056/x
  3. Step 3: Cross multiply
    240,040x = 331,255.20 × 134,056
  4. Step 4: Simplify right side
    240,040x = 44,406,747,091.20
  5. Step 5: Solve for x
    x = 44,406,747,091.20/240,040
  6. Step 6: Final answer
    x = 184,997.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.