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Finding the Fourth Proportional to 449,182.10, 673,870.35 and 133,670.90

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Solution

The fourth proportional to 449,182.10, 673,870.35 and 133,670.90 is: 200,535.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,182.10 : 673,870.35 = 133,670.90 : x
  2. Step 2: Convert to fraction form
    449,182.10/673,870.35 = 133,670.90/x
  3. Step 3: Cross multiply
    449,182.10x = 673,870.35 × 133,670.90
  4. Step 4: Simplify right side
    449,182.10x = 90,076,856,167.82
  5. Step 5: Solve for x
    x = 90,076,856,167.82/449,182.10
  6. Step 6: Final answer
    x = 200,535.28

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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.