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Finding the Fourth Proportional to 368,222.55, 552,388.49 and 115,523.81

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Solution

The fourth proportional to 368,222.55, 552,388.49 and 115,523.81 is: 173,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,222.55 : 552,388.49 = 115,523.81 : x
  2. Step 2: Convert to fraction form
    368,222.55/552,388.49 = 115,523.81/x
  3. Step 3: Cross multiply
    368,222.55x = 552,388.49 × 115,523.81
  4. Step 4: Simplify right side
    368,222.55x = 63,814,022,964.95
  5. Step 5: Solve for x
    x = 63,814,022,964.95/368,222.55
  6. Step 6: Final answer
    x = 173,302.87

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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.