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Finding the Fourth Proportional to 368,229.66, 552,417.93 and 131,605.98

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Solution

The fourth proportional to 368,229.66, 552,417.93 and 131,605.98 is: 197,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,229.66 : 552,417.93 = 131,605.98 : x
  2. Step 2: Convert to fraction form
    368,229.66/552,417.93 = 131,605.98/x
  3. Step 3: Cross multiply
    368,229.66x = 552,417.93 × 131,605.98
  4. Step 4: Simplify right side
    368,229.66x = 72,701,503,047.22
  5. Step 5: Solve for x
    x = 72,701,503,047.22/368,229.66
  6. Step 6: Final answer
    x = 197,435.22

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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.