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Finding the Fourth Proportional to 251,230.80, 377,137.80 and 151,503.60

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Solution

The fourth proportional to 251,230.80, 377,137.80 and 151,503.60 is: 227,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,230.80 : 377,137.80 = 151,503.60 : x
  2. Step 2: Convert to fraction form
    251,230.80/377,137.80 = 151,503.60/x
  3. Step 3: Cross multiply
    251,230.80x = 377,137.80 × 151,503.60
  4. Step 4: Simplify right side
    251,230.80x = 57,137,734,396.08
  5. Step 5: Solve for x
    x = 57,137,734,396.08/251,230.80
  6. Step 6: Final answer
    x = 227,431.25

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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.