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Finding the Fourth Proportional to 368,436.70, 552,655.05 and 131,765.02

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Solution

The fourth proportional to 368,436.70, 552,655.05 and 131,765.02 is: 197,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,436.70 : 552,655.05 = 131,765.02 : x
  2. Step 2: Convert to fraction form
    368,436.70/552,655.05 = 131,765.02/x
  3. Step 3: Cross multiply
    368,436.70x = 552,655.05 × 131,765.02
  4. Step 4: Simplify right side
    368,436.70x = 72,820,603,716.35
  5. Step 5: Solve for x
    x = 72,820,603,716.35/368,436.70
  6. Step 6: Final answer
    x = 197,647.53

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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.