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Finding the Fourth Proportional to 368,783,546.80, 553,203,313.80 and 109,978,567.60

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Solution

The fourth proportional to 368,783,546.80, 553,203,313.80 and 109,978,567.60 is: 164,976,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,783,546.80 : 553,203,313.80 = 109,978,567.60 : x
  2. Step 2: Convert to fraction form
    368,783,546.80/553,203,313.80 = 109,978,567.60/x
  3. Step 3: Cross multiply
    368,783,546.80x = 553,203,313.80 × 109,978,567.60
  4. Step 4: Simplify right side
    368,783,546.80x = 60,840,508,043,297,304
  5. Step 5: Solve for x
    x = 60,840,508,043,297,304/368,783,546.80
  6. Step 6: Final answer
    x = 164,976,199.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.