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Finding the Fourth Proportional to 446,490.79, 669,741.41 and 130,954.03

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Solution

The fourth proportional to 446,490.79, 669,741.41 and 130,954.03 is: 196,432.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,490.79 : 669,741.41 = 130,954.03 : x
  2. Step 2: Convert to fraction form
    446,490.79/669,741.41 = 130,954.03/x
  3. Step 3: Cross multiply
    446,490.79x = 669,741.41 × 130,954.03
  4. Step 4: Simplify right side
    446,490.79x = 87,705,336,042.61
  5. Step 5: Solve for x
    x = 87,705,336,042.61/446,490.79
  6. Step 6: Final answer
    x = 196,432.58

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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.