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Finding the Fourth Proportional to 299,971,240.62, 449,548,314.72 and 168,876,045.42

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Solution

The fourth proportional to 299,971,240.62, 449,548,314.72 and 168,876,045.42 is: 253,084,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,971,240.62 : 449,548,314.72 = 168,876,045.42 : x
  2. Step 2: Convert to fraction form
    299,971,240.62/449,548,314.72 = 168,876,045.42/x
  3. Step 3: Cross multiply
    299,971,240.62x = 449,548,314.72 × 168,876,045.42
  4. Step 4: Simplify right side
    299,971,240.62x = 75,917,941,615,139,168
  5. Step 5: Solve for x
    x = 75,917,941,615,139,168/299,971,240.62
  6. Step 6: Final answer
    x = 253,084,067.19

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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.