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Finding the Fourth Proportional to 181,171.58, 271,516.80 and 81,313.16

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Solution

The fourth proportional to 181,171.58, 271,516.80 and 81,313.16 is: 121,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,171.58 : 271,516.80 = 81,313.16 : x
  2. Step 2: Convert to fraction form
    181,171.58/271,516.80 = 81,313.16/x
  3. Step 3: Cross multiply
    181,171.58x = 271,516.80 × 81,313.16
  4. Step 4: Simplify right side
    181,171.58x = 22,077,889,001.09
  5. Step 5: Solve for x
    x = 22,077,889,001.09/181,171.58
  6. Step 6: Final answer
    x = 121,861.77

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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.