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Finding the Fourth Proportional to 133,687.28, 184,455.96 and 74,071.28

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Solution

The fourth proportional to 133,687.28, 184,455.96 and 74,071.28 is: 102,200.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,687.28 : 184,455.96 = 74,071.28 : x
  2. Step 2: Convert to fraction form
    133,687.28/184,455.96 = 74,071.28/x
  3. Step 3: Cross multiply
    133,687.28x = 184,455.96 × 74,071.28
  4. Step 4: Simplify right side
    133,687.28x = 13,662,889,060.83
  5. Step 5: Solve for x
    x = 13,662,889,060.83/133,687.28
  6. Step 6: Final answer
    x = 102,200.37

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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.