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Finding the Fourth Proportional to 299,114.73, 448,575.03 and 99,381.49

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Solution

The fourth proportional to 299,114.73, 448,575.03 and 99,381.49 is: 149,039.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,114.73 : 448,575.03 = 99,381.49 : x
  2. Step 2: Convert to fraction form
    299,114.73/448,575.03 = 99,381.49/x
  3. Step 3: Cross multiply
    299,114.73x = 448,575.03 × 99,381.49
  4. Step 4: Simplify right side
    299,114.73x = 44,580,053,736.76
  5. Step 5: Solve for x
    x = 44,580,053,736.76/299,114.73
  6. Step 6: Final answer
    x = 149,039.98

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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.