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Finding the Fourth Proportional to 73,320.41, 101,181.80 and 39,786.41

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Solution

The fourth proportional to 73,320.41, 101,181.80 and 39,786.41 is: 54,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,320.41 : 101,181.80 = 39,786.41 : x
  2. Step 2: Convert to fraction form
    73,320.41/101,181.80 = 39,786.41/x
  3. Step 3: Cross multiply
    73,320.41x = 101,181.80 × 39,786.41
  4. Step 4: Simplify right side
    73,320.41x = 4,025,660,172.90
  5. Step 5: Solve for x
    x = 4,025,660,172.90/73,320.41
  6. Step 6: Final answer
    x = 54,905.05

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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.