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Finding the Fourth Proportional to 111,390.20, 166,955.70 and 44,797.40

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Solution

The fourth proportional to 111,390.20, 166,955.70 and 44,797.40 is: 67,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,390.20 : 166,955.70 = 44,797.40 : x
  2. Step 2: Convert to fraction form
    111,390.20/166,955.70 = 44,797.40/x
  3. Step 3: Cross multiply
    111,390.20x = 166,955.70 × 44,797.40
  4. Step 4: Simplify right side
    111,390.20x = 7,479,181,275.18
  5. Step 5: Solve for x
    x = 7,479,181,275.18/111,390.20
  6. Step 6: Final answer
    x = 67,143.98

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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.