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Finding the Fourth Proportional to 133,219.58, 199,971.60 and 57,355.66

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Solution

The fourth proportional to 133,219.58, 199,971.60 and 57,355.66 is: 86,094.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,219.58 : 199,971.60 = 57,355.66 : x
  2. Step 2: Convert to fraction form
    133,219.58/199,971.60 = 57,355.66/x
  3. Step 3: Cross multiply
    133,219.58x = 199,971.60 × 57,355.66
  4. Step 4: Simplify right side
    133,219.58x = 11,469,501,812.62
  5. Step 5: Solve for x
    x = 11,469,501,812.62/133,219.58
  6. Step 6: Final answer
    x = 86,094.72

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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.