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Finding the Fourth Proportional to 45,690.86, 68,572.82 and 44,232.86

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Solution

The fourth proportional to 45,690.86, 68,572.82 and 44,232.86 is: 66,384.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,690.86 : 68,572.82 = 44,232.86 : x
  2. Step 2: Convert to fraction form
    45,690.86/68,572.82 = 44,232.86/x
  3. Step 3: Cross multiply
    45,690.86x = 68,572.82 × 44,232.86
  4. Step 4: Simplify right side
    45,690.86x = 3,033,171,946.87
  5. Step 5: Solve for x
    x = 3,033,171,946.87/45,690.86
  6. Step 6: Final answer
    x = 66,384.65

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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.