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Finding the Fourth Proportional to 133,093.96, 183,729.54 and 87,798.76

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Solution

The fourth proportional to 133,093.96, 183,729.54 and 87,798.76 is: 121,201.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,093.96 : 183,729.54 = 87,798.76 : x
  2. Step 2: Convert to fraction form
    133,093.96/183,729.54 = 87,798.76/x
  3. Step 3: Cross multiply
    133,093.96x = 183,729.54 × 87,798.76
  4. Step 4: Simplify right side
    133,093.96x = 16,131,225,787.37
  5. Step 5: Solve for x
    x = 16,131,225,787.37/133,093.96
  6. Step 6: Final answer
    x = 121,201.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.