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Finding the Fourth Proportional to 151,028.80, 226,485.60 and 45,812.80

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Solution

The fourth proportional to 151,028.80, 226,485.60 and 45,812.80 is: 68,701.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,028.80 : 226,485.60 = 45,812.80 : x
  2. Step 2: Convert to fraction form
    151,028.80/226,485.60 = 45,812.80/x
  3. Step 3: Cross multiply
    151,028.80x = 226,485.60 × 45,812.80
  4. Step 4: Simplify right side
    151,028.80x = 10,375,939,495.68
  5. Step 5: Solve for x
    x = 10,375,939,495.68/151,028.80
  6. Step 6: Final answer
    x = 68,701.73

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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.