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Finding the Fourth Proportional to 115,583.40, 173,399.40 and 65,622.60

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Solution

The fourth proportional to 115,583.40, 173,399.40 and 65,622.60 is: 98,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,583.40 : 173,399.40 = 65,622.60 : x
  2. Step 2: Convert to fraction form
    115,583.40/173,399.40 = 65,622.60/x
  3. Step 3: Cross multiply
    115,583.40x = 173,399.40 × 65,622.60
  4. Step 4: Simplify right side
    115,583.40x = 11,378,919,466.44
  5. Step 5: Solve for x
    x = 11,378,919,466.44/115,583.40
  6. Step 6: Final answer
    x = 98,447.70

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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.