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Finding the Fourth Proportional to 188,896.88, 260,677.69 and 104,013.74

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Solution

The fourth proportional to 188,896.88, 260,677.69 and 104,013.74 is: 143,538.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,896.88 : 260,677.69 = 104,013.74 : x
  2. Step 2: Convert to fraction form
    188,896.88/260,677.69 = 104,013.74/x
  3. Step 3: Cross multiply
    188,896.88x = 260,677.69 × 104,013.74
  4. Step 4: Simplify right side
    188,896.88x = 27,114,060,168.07
  5. Step 5: Solve for x
    x = 27,114,060,168.07/188,896.88
  6. Step 6: Final answer
    x = 143,538.96

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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.