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Finding the Fourth Proportional to 45,859.62, 68,478.85 and 36,393.36

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Solution

The fourth proportional to 45,859.62, 68,478.85 and 36,393.36 is: 54,343.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,859.62 : 68,478.85 = 36,393.36 : x
  2. Step 2: Convert to fraction form
    45,859.62/68,478.85 = 36,393.36/x
  3. Step 3: Cross multiply
    45,859.62x = 68,478.85 × 36,393.36
  4. Step 4: Simplify right side
    45,859.62x = 2,492,175,440.44
  5. Step 5: Solve for x
    x = 2,492,175,440.44/45,859.62
  6. Step 6: Final answer
    x = 54,343.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.