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Finding the Fourth Proportional to 188,907.75, 260,692.70 and 104,024.61

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Solution

The fourth proportional to 188,907.75, 260,692.70 and 104,024.61 is: 143,553.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,907.75 : 260,692.70 = 104,024.61 : x
  2. Step 2: Convert to fraction form
    188,907.75/260,692.70 = 104,024.61/x
  3. Step 3: Cross multiply
    188,907.75x = 260,692.70 × 104,024.61
  4. Step 4: Simplify right side
    188,907.75x = 27,118,455,927.22
  5. Step 5: Solve for x
    x = 27,118,455,927.22/188,907.75
  6. Step 6: Final answer
    x = 143,553.96

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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.