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Finding the Fourth Proportional to 191,910.40, 264,944.56 and 133,080.10

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Solution

The fourth proportional to 191,910.40, 264,944.56 and 133,080.10 is: 183,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,910.40 : 264,944.56 = 133,080.10 : x
  2. Step 2: Convert to fraction form
    191,910.40/264,944.56 = 133,080.10/x
  3. Step 3: Cross multiply
    191,910.40x = 264,944.56 × 133,080.10
  4. Step 4: Simplify right side
    191,910.40x = 35,258,848,539.26
  5. Step 5: Solve for x
    x = 35,258,848,539.26/191,910.40
  6. Step 6: Final answer
    x = 183,725.57

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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.