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Finding the Fourth Proportional to 191,987.84, 264,942.42 and 107,104.97

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Solution

The fourth proportional to 191,987.84, 264,942.42 and 107,104.97 is: 147,804.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,987.84 : 264,942.42 = 107,104.97 : x
  2. Step 2: Convert to fraction form
    191,987.84/264,942.42 = 107,104.97/x
  3. Step 3: Cross multiply
    191,987.84x = 264,942.42 × 107,104.97
  4. Step 4: Simplify right side
    191,987.84x = 28,376,649,945.83
  5. Step 5: Solve for x
    x = 28,376,649,945.83/191,987.84
  6. Step 6: Final answer
    x = 147,804.41

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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.