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Finding the Fourth Proportional to 148,464.80, 222,697.20 and 115,287.20

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Solution

The fourth proportional to 148,464.80, 222,697.20 and 115,287.20 is: 172,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,464.80 : 222,697.20 = 115,287.20 : x
  2. Step 2: Convert to fraction form
    148,464.80/222,697.20 = 115,287.20/x
  3. Step 3: Cross multiply
    148,464.80x = 222,697.20 × 115,287.20
  4. Step 4: Simplify right side
    148,464.80x = 25,674,136,635.84
  5. Step 5: Solve for x
    x = 25,674,136,635.84/148,464.80
  6. Step 6: Final answer
    x = 172,930.80

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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.