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Finding the Fourth Proportional to 235,751,907.60, 353,627,861.40 and 74,193,843.60

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Solution

The fourth proportional to 235,751,907.60, 353,627,861.40 and 74,193,843.60 is: 111,290,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,751,907.60 : 353,627,861.40 = 74,193,843.60 : x
  2. Step 2: Convert to fraction form
    235,751,907.60/353,627,861.40 = 74,193,843.60/x
  3. Step 3: Cross multiply
    235,751,907.60x = 353,627,861.40 × 74,193,843.60
  4. Step 4: Simplify right side
    235,751,907.60x = 26,237,010,241,314,072
  5. Step 5: Solve for x
    x = 26,237,010,241,314,072/235,751,907.60
  6. Step 6: Final answer
    x = 111,290,765.40

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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.