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Finding the Fourth Proportional to 221,940.44, 306,683.52 and 158,167.52

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Solution

The fourth proportional to 221,940.44, 306,683.52 and 158,167.52 is: 218,560.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,940.44 : 306,683.52 = 158,167.52 : x
  2. Step 2: Convert to fraction form
    221,940.44/306,683.52 = 158,167.52/x
  3. Step 3: Cross multiply
    221,940.44x = 306,683.52 × 158,167.52
  4. Step 4: Simplify right side
    221,940.44x = 48,507,371,783.27
  5. Step 5: Solve for x
    x = 48,507,371,783.27/221,940.44
  6. Step 6: Final answer
    x = 218,560.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.