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Finding the Fourth Proportional to 299,308,447.20, 448,962,670.80 and 169,866,040.80

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Solution

The fourth proportional to 299,308,447.20, 448,962,670.80 and 169,866,040.80 is: 254,799,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,308,447.20 : 448,962,670.80 = 169,866,040.80 : x
  2. Step 2: Convert to fraction form
    299,308,447.20/448,962,670.80 = 169,866,040.80/x
  3. Step 3: Cross multiply
    299,308,447.20x = 448,962,670.80 × 169,866,040.80
  4. Step 4: Simplify right side
    299,308,447.20x = 76,263,511,355,789,776
  5. Step 5: Solve for x
    x = 76,263,511,355,789,776/299,308,447.20
  6. Step 6: Final answer
    x = 254,799,061.20

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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.