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Finding the Fourth Proportional to 76,576.46, 105,660.02 and 44,739.20

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Solution

The fourth proportional to 76,576.46, 105,660.02 and 44,739.20 is: 61,731.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,576.46 : 105,660.02 = 44,739.20 : x
  2. Step 2: Convert to fraction form
    76,576.46/105,660.02 = 44,739.20/x
  3. Step 3: Cross multiply
    76,576.46x = 105,660.02 × 44,739.20
  4. Step 4: Simplify right side
    76,576.46x = 4,727,145,142.78
  5. Step 5: Solve for x
    x = 4,727,145,142.78/76,576.46
  6. Step 6: Final answer
    x = 61,731.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.