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Finding the Fourth Proportional to 110,955.52, 166,425.60 and 40,821.76

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Solution

The fourth proportional to 110,955.52, 166,425.60 and 40,821.76 is: 61,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,955.52 : 166,425.60 = 40,821.76 : x
  2. Step 2: Convert to fraction form
    110,955.52/166,425.60 = 40,821.76/x
  3. Step 3: Cross multiply
    110,955.52x = 166,425.60 × 40,821.76
  4. Step 4: Simplify right side
    110,955.52x = 6,793,785,901.06
  5. Step 5: Solve for x
    x = 6,793,785,901.06/110,955.52
  6. Step 6: Final answer
    x = 61,229.81

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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.