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Finding the Fourth Proportional to 169,530,780, 254,334,078 and 61,825,404

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Solution

The fourth proportional to 169,530,780, 254,334,078 and 61,825,404 is: 92,751,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,530,780 : 254,334,078 = 61,825,404 : x
  2. Step 2: Convert to fraction form
    169,530,780/254,334,078 = 61,825,404/x
  3. Step 3: Cross multiply
    169,530,780x = 254,334,078 × 61,825,404
  4. Step 4: Simplify right side
    169,530,780x = 15,724,307,123,317,512
  5. Step 5: Solve for x
    x = 15,724,307,123,317,512/169,530,780
  6. Step 6: Final answer
    x = 92,751,930.49

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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.