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Finding the Fourth Proportional to 368,372.61, 552,559.11 and 115,651.98

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Solution

The fourth proportional to 368,372.61, 552,559.11 and 115,651.98 is: 173,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,372.61 : 552,559.11 = 115,651.98 : x
  2. Step 2: Convert to fraction form
    368,372.61/552,559.11 = 115,651.98/x
  3. Step 3: Cross multiply
    368,372.61x = 552,559.11 × 115,651.98
  4. Step 4: Simplify right side
    368,372.61x = 63,904,555,138.54
  5. Step 5: Solve for x
    x = 63,904,555,138.54/368,372.61
  6. Step 6: Final answer
    x = 173,478.03

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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.