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Finding the Fourth Proportional to 354,245.58, 530,999.30 and 154,512.34

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Solution

The fourth proportional to 354,245.58, 530,999.30 and 154,512.34 is: 231,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,245.58 : 530,999.30 = 154,512.34 : x
  2. Step 2: Convert to fraction form
    354,245.58/530,999.30 = 154,512.34/x
  3. Step 3: Cross multiply
    354,245.58x = 530,999.30 × 154,512.34
  4. Step 4: Simplify right side
    354,245.58x = 82,045,944,381.36
  5. Step 5: Solve for x
    x = 82,045,944,381.36/354,245.58
  6. Step 6: Final answer
    x = 231,607.53

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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.