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Finding the Fourth Proportional to 181,071.64, 271,541.84 and 81,180.41

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Solution

The fourth proportional to 181,071.64, 271,541.84 and 81,180.41 is: 121,741.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,071.64 : 271,541.84 = 81,180.41 : x
  2. Step 2: Convert to fraction form
    181,071.64/271,541.84 = 81,180.41/x
  3. Step 3: Cross multiply
    181,071.64x = 271,541.84 × 81,180.41
  4. Step 4: Simplify right side
    181,071.64x = 22,043,878,123.81
  5. Step 5: Solve for x
    x = 22,043,878,123.81/181,071.64
  6. Step 6: Final answer
    x = 121,741.20

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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.