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Finding the Fourth Proportional to 222,187,431.60, 310,297,129.20 and 222,187,431.60

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Solution

The fourth proportional to 222,187,431.60, 310,297,129.20 and 222,187,431.60 is: 310,297,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,187,431.60 : 310,297,129.20 = 222,187,431.60 : x
  2. Step 2: Convert to fraction form
    222,187,431.60/310,297,129.20 = 222,187,431.60/x
  3. Step 3: Cross multiply
    222,187,431.60x = 310,297,129.20 × 222,187,431.60
  4. Step 4: Simplify right side
    222,187,431.60x = 68,944,122,169,801,360
  5. Step 5: Solve for x
    x = 68,944,122,169,801,360/222,187,431.60
  6. Step 6: Final answer
    x = 310,297,129.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.