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Finding the Fourth Proportional to 180,758.10, 271,211.49 and 79,504.05

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Solution

The fourth proportional to 180,758.10, 271,211.49 and 79,504.05 is: 119,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,758.10 : 271,211.49 = 79,504.05 : x
  2. Step 2: Convert to fraction form
    180,758.10/271,211.49 = 79,504.05/x
  3. Step 3: Cross multiply
    180,758.10x = 271,211.49 × 79,504.05
  4. Step 4: Simplify right side
    180,758.10x = 21,562,411,861.53
  5. Step 5: Solve for x
    x = 21,562,411,861.53/180,758.10
  6. Step 6: Final answer
    x = 119,288.77

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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.