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Finding the Fourth Proportional to 180,907.40, 271,361.10 and 75,715.40

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Solution

The fourth proportional to 180,907.40, 271,361.10 and 75,715.40 is: 113,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,907.40 : 271,361.10 = 75,715.40 : x
  2. Step 2: Convert to fraction form
    180,907.40/271,361.10 = 75,715.40/x
  3. Step 3: Cross multiply
    180,907.40x = 271,361.10 × 75,715.40
  4. Step 4: Simplify right side
    180,907.40x = 20,546,214,230.94
  5. Step 5: Solve for x
    x = 20,546,214,230.94/180,907.40
  6. Step 6: Final answer
    x = 113,573.10

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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.