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Finding the Fourth Proportional to 246,647.88, 369,982.16 and 78,164.52

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Solution

The fourth proportional to 246,647.88, 369,982.16 and 78,164.52 is: 117,250.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,647.88 : 369,982.16 = 78,164.52 : x
  2. Step 2: Convert to fraction form
    246,647.88/369,982.16 = 78,164.52/x
  3. Step 3: Cross multiply
    246,647.88x = 369,982.16 × 78,164.52
  4. Step 4: Simplify right side
    246,647.88x = 28,919,477,944.96
  5. Step 5: Solve for x
    x = 28,919,477,944.96/246,647.88
  6. Step 6: Final answer
    x = 117,250.06

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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.