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Finding the Fourth Proportional to 299,012.58, 448,517.43 and 99,347.94

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Solution

The fourth proportional to 299,012.58, 448,517.43 and 99,347.94 is: 149,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,012.58 : 448,517.43 = 99,347.94 : x
  2. Step 2: Convert to fraction form
    299,012.58/448,517.43 = 99,347.94/x
  3. Step 3: Cross multiply
    299,012.58x = 448,517.43 × 99,347.94
  4. Step 4: Simplify right side
    299,012.58x = 44,559,282,724.59
  5. Step 5: Solve for x
    x = 44,559,282,724.59/299,012.58
  6. Step 6: Final answer
    x = 149,021.43

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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.