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Finding the Fourth Proportional to 339,978,679.60, 509,968,019.40 and 110,112,732.40

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Solution

The fourth proportional to 339,978,679.60, 509,968,019.40 and 110,112,732.40 is: 165,169,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,978,679.60 : 509,968,019.40 = 110,112,732.40 : x
  2. Step 2: Convert to fraction form
    339,978,679.60/509,968,019.40 = 110,112,732.40/x
  3. Step 3: Cross multiply
    339,978,679.60x = 509,968,019.40 × 110,112,732.40
  4. Step 4: Simplify right side
    339,978,679.60x = 56,153,972,052,750,208
  5. Step 5: Solve for x
    x = 56,153,972,052,750,208/339,978,679.60
  6. Step 6: Final answer
    x = 165,169,098.60

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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.