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Finding the Fourth Proportional to 169,395,645.60, 254,345,410.80 and 131,100,400.80

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Solution

The fourth proportional to 169,395,645.60, 254,345,410.80 and 131,100,400.80 is: 196,845,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,395,645.60 : 254,345,410.80 = 131,100,400.80 : x
  2. Step 2: Convert to fraction form
    169,395,645.60/254,345,410.80 = 131,100,400.80/x
  3. Step 3: Cross multiply
    169,395,645.60x = 254,345,410.80 × 131,100,400.80
  4. Step 4: Simplify right side
    169,395,645.60x = 33,344,785,297,520,648
  5. Step 5: Solve for x
    x = 33,344,785,297,520,648/169,395,645.60
  6. Step 6: Final answer
    x = 196,845,587.02

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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.