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Finding the Fourth Proportional to 275,087.64, 412,639.29 and 125,250.60

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Solution

The fourth proportional to 275,087.64, 412,639.29 and 125,250.60 is: 187,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,087.64 : 412,639.29 = 125,250.60 : x
  2. Step 2: Convert to fraction form
    275,087.64/412,639.29 = 125,250.60/x
  3. Step 3: Cross multiply
    275,087.64x = 412,639.29 × 125,250.60
  4. Step 4: Simplify right side
    275,087.64x = 51,683,318,656.07
  5. Step 5: Solve for x
    x = 51,683,318,656.07/275,087.64
  6. Step 6: Final answer
    x = 187,879.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.