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Finding the Fourth Proportional to 191,783.38, 264,664.54 and 106,891.32

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Solution

The fourth proportional to 191,783.38, 264,664.54 and 106,891.32 is: 147,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,783.38 : 264,664.54 = 106,891.32 : x
  2. Step 2: Convert to fraction form
    191,783.38/264,664.54 = 106,891.32/x
  3. Step 3: Cross multiply
    191,783.38x = 264,664.54 × 106,891.32
  4. Step 4: Simplify right side
    191,783.38x = 28,290,342,037.79
  5. Step 5: Solve for x
    x = 28,290,342,037.79/191,783.38
  6. Step 6: Final answer
    x = 147,511.96

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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.