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Finding the Fourth Proportional to 449,418.80, 674,225.40 and 149,848.40

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Solution

The fourth proportional to 449,418.80, 674,225.40 and 149,848.40 is: 224,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,418.80 : 674,225.40 = 149,848.40 : x
  2. Step 2: Convert to fraction form
    449,418.80/674,225.40 = 149,848.40/x
  3. Step 3: Cross multiply
    449,418.80x = 674,225.40 × 149,848.40
  4. Step 4: Simplify right side
    449,418.80x = 101,031,597,429.36
  5. Step 5: Solve for x
    x = 101,031,597,429.36/449,418.80
  6. Step 6: Final answer
    x = 224,805.01

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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.