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Finding the Fourth Proportional to 180,858.90, 271,211.55 and 87,393.30

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Solution

The fourth proportional to 180,858.90, 271,211.55 and 87,393.30 is: 131,052.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,858.90 : 271,211.55 = 87,393.30 : x
  2. Step 2: Convert to fraction form
    180,858.90/271,211.55 = 87,393.30/x
  3. Step 3: Cross multiply
    180,858.90x = 271,211.55 × 87,393.30
  4. Step 4: Simplify right side
    180,858.90x = 23,702,072,352.62
  5. Step 5: Solve for x
    x = 23,702,072,352.62/180,858.90
  6. Step 6: Final answer
    x = 131,052.84

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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.