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Finding the Fourth Proportional to 226,812.87, 312,948.36 and 190,651.77

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Solution

The fourth proportional to 226,812.87, 312,948.36 and 190,651.77 is: 263,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,812.87 : 312,948.36 = 190,651.77 : x
  2. Step 2: Convert to fraction form
    226,812.87/312,948.36 = 190,651.77/x
  3. Step 3: Cross multiply
    226,812.87x = 312,948.36 × 190,651.77
  4. Step 4: Simplify right side
    226,812.87x = 59,664,158,752.60
  5. Step 5: Solve for x
    x = 59,664,158,752.60/226,812.87
  6. Step 6: Final answer
    x = 263,054.56

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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.