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Finding the Fourth Proportional to 181,576.80, 272,365.20 and 55,216.80

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Solution

The fourth proportional to 181,576.80, 272,365.20 and 55,216.80 is: 82,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,576.80 : 272,365.20 = 55,216.80 : x
  2. Step 2: Convert to fraction form
    181,576.80/272,365.20 = 55,216.80/x
  3. Step 3: Cross multiply
    181,576.80x = 272,365.20 × 55,216.80
  4. Step 4: Simplify right side
    181,576.80x = 15,039,134,775.36
  5. Step 5: Solve for x
    x = 15,039,134,775.36/181,576.80
  6. Step 6: Final answer
    x = 82,825.20

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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.