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Finding the Fourth Proportional to 180,832.66, 271,301.94 and 80,970.60

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Solution

The fourth proportional to 180,832.66, 271,301.94 and 80,970.60 is: 121,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,832.66 : 271,301.94 = 80,970.60 : x
  2. Step 2: Convert to fraction form
    180,832.66/271,301.94 = 80,970.60/x
  3. Step 3: Cross multiply
    180,832.66x = 271,301.94 × 80,970.60
  4. Step 4: Simplify right side
    180,832.66x = 21,967,480,862.96
  5. Step 5: Solve for x
    x = 21,967,480,862.96/180,832.66
  6. Step 6: Final answer
    x = 121,479.61

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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.