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Finding the Fourth Proportional to 181,196.10, 271,738.80 and 86,376.30

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Solution

The fourth proportional to 181,196.10, 271,738.80 and 86,376.30 is: 129,538.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,196.10 : 271,738.80 = 86,376.30 : x
  2. Step 2: Convert to fraction form
    181,196.10/271,738.80 = 86,376.30/x
  3. Step 3: Cross multiply
    181,196.10x = 271,738.80 × 86,376.30
  4. Step 4: Simplify right side
    181,196.10x = 23,471,792,110.44
  5. Step 5: Solve for x
    x = 23,471,792,110.44/181,196.10
  6. Step 6: Final answer
    x = 129,538.06

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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.