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Finding the Fourth Proportional to 368,059.78, 552,094.53 and 131,416.66

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Solution

The fourth proportional to 368,059.78, 552,094.53 and 131,416.66 is: 197,126.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,059.78 : 552,094.53 = 131,416.66 : x
  2. Step 2: Convert to fraction form
    368,059.78/552,094.53 = 131,416.66/x
  3. Step 3: Cross multiply
    368,059.78x = 552,094.53 × 131,416.66
  4. Step 4: Simplify right side
    368,059.78x = 72,554,419,136.87
  5. Step 5: Solve for x
    x = 72,554,419,136.87/368,059.78
  6. Step 6: Final answer
    x = 197,126.73

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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.