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Finding the Fourth Proportional to 299,546,751.60, 449,320,127.40 and 245,127,193.20

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Solution

The fourth proportional to 299,546,751.60, 449,320,127.40 and 245,127,193.20 is: 367,690,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,546,751.60 : 449,320,127.40 = 245,127,193.20 : x
  2. Step 2: Convert to fraction form
    299,546,751.60/449,320,127.40 = 245,127,193.20/x
  3. Step 3: Cross multiply
    299,546,751.60x = 449,320,127.40 × 245,127,193.20
  4. Step 4: Simplify right side
    299,546,751.60x = 110,140,581,677,828,400
  5. Step 5: Solve for x
    x = 110,140,581,677,828,400/299,546,751.60
  6. Step 6: Final answer
    x = 367,690,789.80

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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.