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Finding the Fourth Proportional to 297,726, 446,588.32 and 129,224.49

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Solution

The fourth proportional to 297,726, 446,588.32 and 129,224.49 is: 193,836.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,726 : 446,588.32 = 129,224.49 : x
  2. Step 2: Convert to fraction form
    297,726/446,588.32 = 129,224.49/x
  3. Step 3: Cross multiply
    297,726x = 446,588.32 × 129,224.49
  4. Step 4: Simplify right side
    297,726x = 57,710,145,012.89
  5. Step 5: Solve for x
    x = 57,710,145,012.89/297,726
  6. Step 6: Final answer
    x = 193,836.43

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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.