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Finding the Fourth Proportional to 299,508,498.60, 449,346,728.70 and 127,067,922.60

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Solution

The fourth proportional to 299,508,498.60, 449,346,728.70 and 127,067,922.60 is: 190,637,513.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,508,498.60 : 449,346,728.70 = 127,067,922.60 : x
  2. Step 2: Convert to fraction form
    299,508,498.60/449,346,728.70 = 127,067,922.60/x
  3. Step 3: Cross multiply
    299,508,498.60x = 449,346,728.70 × 127,067,922.60
  4. Step 4: Simplify right side
    299,508,498.60x = 57,097,555,343,014,792
  5. Step 5: Solve for x
    x = 57,097,555,343,014,792/299,508,498.60
  6. Step 6: Final answer
    x = 190,637,513.16

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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.