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Finding the Fourth Proportional to 275,163.60, 379,745.40 and 152,696.16

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Solution

The fourth proportional to 275,163.60, 379,745.40 and 152,696.16 is: 210,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,163.60 : 379,745.40 = 152,696.16 : x
  2. Step 2: Convert to fraction form
    275,163.60/379,745.40 = 152,696.16/x
  3. Step 3: Cross multiply
    275,163.60x = 379,745.40 × 152,696.16
  4. Step 4: Simplify right side
    275,163.60x = 57,985,664,357.66
  5. Step 5: Solve for x
    x = 57,985,664,357.66/275,163.60
  6. Step 6: Final answer
    x = 210,731.60

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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.