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Finding the Fourth Proportional to 111,093.40, 166,640.10 and 73,703.80

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Solution

The fourth proportional to 111,093.40, 166,640.10 and 73,703.80 is: 110,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,093.40 : 166,640.10 = 73,703.80 : x
  2. Step 2: Convert to fraction form
    111,093.40/166,640.10 = 73,703.80/x
  3. Step 3: Cross multiply
    111,093.40x = 166,640.10 × 73,703.80
  4. Step 4: Simplify right side
    111,093.40x = 12,282,008,602.38
  5. Step 5: Solve for x
    x = 12,282,008,602.38/111,093.40
  6. Step 6: Final answer
    x = 110,555.70

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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.