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Finding the Fourth Proportional to 188,978,403.60, 283,467,605.40 and 161,768,624.40

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Solution

The fourth proportional to 188,978,403.60, 283,467,605.40 and 161,768,624.40 is: 242,652,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,978,403.60 : 283,467,605.40 = 161,768,624.40 : x
  2. Step 2: Convert to fraction form
    188,978,403.60/283,467,605.40 = 161,768,624.40/x
  3. Step 3: Cross multiply
    188,978,403.60x = 283,467,605.40 × 161,768,624.40
  4. Step 4: Simplify right side
    188,978,403.60x = 45,856,164,587,520,008
  5. Step 5: Solve for x
    x = 45,856,164,587,520,008/188,978,403.60
  6. Step 6: Final answer
    x = 242,652,936.60

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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.