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Finding the Fourth Proportional to 297,840.34, 446,793.18 and 129,244.78

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Solution

The fourth proportional to 297,840.34, 446,793.18 and 129,244.78 is: 193,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,840.34 : 446,793.18 = 129,244.78 : x
  2. Step 2: Convert to fraction form
    297,840.34/446,793.18 = 129,244.78/x
  3. Step 3: Cross multiply
    297,840.34x = 446,793.18 × 129,244.78
  4. Step 4: Simplify right side
    297,840.34x = 57,745,686,254.60
  5. Step 5: Solve for x
    x = 57,745,686,254.60/297,840.34
  6. Step 6: Final answer
    x = 193,881.35

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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.