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Finding the Fourth Proportional to 180,889.84, 271,323.79 and 81,023.23

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Solution

The fourth proportional to 180,889.84, 271,323.79 and 81,023.23 is: 121,529.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,889.84 : 271,323.79 = 81,023.23 : x
  2. Step 2: Convert to fraction form
    180,889.84/271,323.79 = 81,023.23/x
  3. Step 3: Cross multiply
    180,889.84x = 271,323.79 × 81,023.23
  4. Step 4: Simplify right side
    180,889.84x = 21,983,529,841.64
  5. Step 5: Solve for x
    x = 21,983,529,841.64/180,889.84
  6. Step 6: Final answer
    x = 121,529.93

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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.