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Finding the Fourth Proportional to 188,956, 260,759.34 and 104,072.92

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Solution

The fourth proportional to 188,956, 260,759.34 and 104,072.92 is: 143,620.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,956 : 260,759.34 = 104,072.92 : x
  2. Step 2: Convert to fraction form
    188,956/260,759.34 = 104,072.92/x
  3. Step 3: Cross multiply
    188,956x = 260,759.34 × 104,072.92
  4. Step 4: Simplify right side
    188,956x = 27,137,985,931.07
  5. Step 5: Solve for x
    x = 27,137,985,931.07/188,956
  6. Step 6: Final answer
    x = 143,620.66

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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.