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Finding the Fourth Proportional to 220,208, 330,328.48 and 62,449.16

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Solution

The fourth proportional to 220,208, 330,328.48 and 62,449.16 is: 93,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,208 : 330,328.48 = 62,449.16 : x
  2. Step 2: Convert to fraction form
    220,208/330,328.48 = 62,449.16/x
  3. Step 3: Cross multiply
    220,208x = 330,328.48 × 62,449.16
  4. Step 4: Simplify right side
    220,208x = 20,628,736,100.08
  5. Step 5: Solve for x
    x = 20,628,736,100.08/220,208
  6. Step 6: Final answer
    x = 93,678.41

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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.