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Finding the Fourth Proportional to 414,157.19, 621,236.66 and 114,638.63

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Solution

The fourth proportional to 414,157.19, 621,236.66 and 114,638.63 is: 171,958.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,157.19 : 621,236.66 = 114,638.63 : x
  2. Step 2: Convert to fraction form
    414,157.19/621,236.66 = 114,638.63/x
  3. Step 3: Cross multiply
    414,157.19x = 621,236.66 × 114,638.63
  4. Step 4: Simplify right side
    414,157.19x = 71,217,715,928.80
  5. Step 5: Solve for x
    x = 71,217,715,928.80/414,157.19
  6. Step 6: Final answer
    x = 171,958.18

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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.