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Finding the Fourth Proportional to 299,374.20, 449,061.30 and 99,701.10

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Solution

The fourth proportional to 299,374.20, 449,061.30 and 99,701.10 is: 149,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,374.20 : 449,061.30 = 99,701.10 : x
  2. Step 2: Convert to fraction form
    299,374.20/449,061.30 = 99,701.10/x
  3. Step 3: Cross multiply
    299,374.20x = 449,061.30 × 99,701.10
  4. Step 4: Simplify right side
    299,374.20x = 44,771,905,577.43
  5. Step 5: Solve for x
    x = 44,771,905,577.43/299,374.20
  6. Step 6: Final answer
    x = 149,551.65

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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.