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Finding the Fourth Proportional to 180,915.08, 271,396.64 and 67,047.12

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Solution

The fourth proportional to 180,915.08, 271,396.64 and 67,047.12 is: 100,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,915.08 : 271,396.64 = 67,047.12 : x
  2. Step 2: Convert to fraction form
    180,915.08/271,396.64 = 67,047.12/x
  3. Step 3: Cross multiply
    180,915.08x = 271,396.64 × 67,047.12
  4. Step 4: Simplify right side
    180,915.08x = 18,196,363,257.29
  5. Step 5: Solve for x
    x = 18,196,363,257.29/180,915.08
  6. Step 6: Final answer
    x = 100,579.59

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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.