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Finding the Fourth Proportional to 45,608, 68,355.84 and 32,388.80

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Solution

The fourth proportional to 45,608, 68,355.84 and 32,388.80 is: 48,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,608 : 68,355.84 = 32,388.80 : x
  2. Step 2: Convert to fraction form
    45,608/68,355.84 = 32,388.80/x
  3. Step 3: Cross multiply
    45,608x = 68,355.84 × 32,388.80
  4. Step 4: Simplify right side
    45,608x = 2,213,963,630.59
  5. Step 5: Solve for x
    x = 2,213,963,630.59/45,608
  6. Step 6: Final answer
    x = 48,543.32

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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.