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Finding the Fourth Proportional to 111,806.20, 167,660.70 and 36,897.40

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Solution

The fourth proportional to 111,806.20, 167,660.70 and 36,897.40 is: 55,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,806.20 : 167,660.70 = 36,897.40 : x
  2. Step 2: Convert to fraction form
    111,806.20/167,660.70 = 36,897.40/x
  3. Step 3: Cross multiply
    111,806.20x = 167,660.70 × 36,897.40
  4. Step 4: Simplify right side
    111,806.20x = 6,186,243,912.18
  5. Step 5: Solve for x
    x = 6,186,243,912.18/111,806.20
  6. Step 6: Final answer
    x = 55,330.06

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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.