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Finding the Fourth Proportional to 299,169.25, 448,438.88 and 99,436.01

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Solution

The fourth proportional to 299,169.25, 448,438.88 and 99,436.01 is: 149,049.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,169.25 : 448,438.88 = 99,436.01 : x
  2. Step 2: Convert to fraction form
    299,169.25/448,438.88 = 99,436.01/x
  3. Step 3: Cross multiply
    299,169.25x = 448,438.88 × 99,436.01
  4. Step 4: Simplify right side
    299,169.25x = 44,590,970,962.46
  5. Step 5: Solve for x
    x = 44,590,970,962.46/299,169.25
  6. Step 6: Final answer
    x = 149,049.31

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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.