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Finding the Fourth Proportional to 181,388.57, 250,305.19 and 100,813.41

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Solution

The fourth proportional to 181,388.57, 250,305.19 and 100,813.41 is: 139,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,388.57 : 250,305.19 = 100,813.41 : x
  2. Step 2: Convert to fraction form
    181,388.57/250,305.19 = 100,813.41/x
  3. Step 3: Cross multiply
    181,388.57x = 250,305.19 × 100,813.41
  4. Step 4: Simplify right side
    181,388.57x = 25,234,119,492.56
  5. Step 5: Solve for x
    x = 25,234,119,492.56/181,388.57
  6. Step 6: Final answer
    x = 139,116.37

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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.