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Finding the Fourth Proportional to 173,847.40, 260,771.10 and 85,114.60

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Solution

The fourth proportional to 173,847.40, 260,771.10 and 85,114.60 is: 127,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,847.40 : 260,771.10 = 85,114.60 : x
  2. Step 2: Convert to fraction form
    173,847.40/260,771.10 = 85,114.60/x
  3. Step 3: Cross multiply
    173,847.40x = 260,771.10 × 85,114.60
  4. Step 4: Simplify right side
    173,847.40x = 22,195,427,868.06
  5. Step 5: Solve for x
    x = 22,195,427,868.06/173,847.40
  6. Step 6: Final answer
    x = 127,671.90

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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.