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Finding the Fourth Proportional to 299,444.04, 449,107.20 and 89,035.20

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Solution

The fourth proportional to 299,444.04, 449,107.20 and 89,035.20 is: 133,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,444.04 : 449,107.20 = 89,035.20 : x
  2. Step 2: Convert to fraction form
    299,444.04/449,107.20 = 89,035.20/x
  3. Step 3: Cross multiply
    299,444.04x = 449,107.20 × 89,035.20
  4. Step 4: Simplify right side
    299,444.04x = 39,986,349,373.44
  5. Step 5: Solve for x
    x = 39,986,349,373.44/299,444.04
  6. Step 6: Final answer
    x = 133,535.30

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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.