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Finding the Fourth Proportional to 72,181.71, 108,294.44 and 32,728.23

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Solution

The fourth proportional to 72,181.71, 108,294.44 and 32,728.23 is: 49,102.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,181.71 : 108,294.44 = 32,728.23 : x
  2. Step 2: Convert to fraction form
    72,181.71/108,294.44 = 32,728.23/x
  3. Step 3: Cross multiply
    72,181.71x = 108,294.44 × 32,728.23
  4. Step 4: Simplify right side
    72,181.71x = 3,544,285,176.40
  5. Step 5: Solve for x
    x = 3,544,285,176.40/72,181.71
  6. Step 6: Final answer
    x = 49,102.26

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1.5x scale

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.