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Finding the Fourth Proportional to 188,469.96, 260,081.40 and 107,904.97

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Solution

The fourth proportional to 188,469.96, 260,081.40 and 107,904.97 is: 148,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,469.96 : 260,081.40 = 107,904.97 : x
  2. Step 2: Convert to fraction form
    188,469.96/260,081.40 = 107,904.97/x
  3. Step 3: Cross multiply
    188,469.96x = 260,081.40 × 107,904.97
  4. Step 4: Simplify right side
    188,469.96x = 28,064,075,664.56
  5. Step 5: Solve for x
    x = 28,064,075,664.56/188,469.96
  6. Step 6: Final answer
    x = 148,904.77

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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.