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Finding the Fourth Proportional to 446,376.85, 669,570.72 and 130,840.14

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Solution

The fourth proportional to 446,376.85, 669,570.72 and 130,840.14 is: 196,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,376.85 : 669,570.72 = 130,840.14 : x
  2. Step 2: Convert to fraction form
    446,376.85/669,570.72 = 130,840.14/x
  3. Step 3: Cross multiply
    446,376.85x = 669,570.72 × 130,840.14
  4. Step 4: Simplify right side
    446,376.85x = 87,606,723,396.85
  5. Step 5: Solve for x
    x = 87,606,723,396.85/446,376.85
  6. Step 6: Final answer
    x = 196,261.80

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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.