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Finding the Fourth Proportional to 115,466.70, 173,200.05 and 92,138.70

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Solution

The fourth proportional to 115,466.70, 173,200.05 and 92,138.70 is: 138,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,466.70 : 173,200.05 = 92,138.70 : x
  2. Step 2: Convert to fraction form
    115,466.70/173,200.05 = 92,138.70/x
  3. Step 3: Cross multiply
    115,466.70x = 173,200.05 × 92,138.70
  4. Step 4: Simplify right side
    115,466.70x = 15,958,427,446.94
  5. Step 5: Solve for x
    x = 15,958,427,446.94/115,466.70
  6. Step 6: Final answer
    x = 138,208.05

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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.