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Finding the Fourth Proportional to 80,900.44, 111,646.08 and 45,090.44

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Solution

The fourth proportional to 80,900.44, 111,646.08 and 45,090.44 is: 62,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,900.44 : 111,646.08 = 45,090.44 : x
  2. Step 2: Convert to fraction form
    80,900.44/111,646.08 = 45,090.44/x
  3. Step 3: Cross multiply
    80,900.44x = 111,646.08 × 45,090.44
  4. Step 4: Simplify right side
    80,900.44x = 5,034,170,871.48
  5. Step 5: Solve for x
    x = 5,034,170,871.48/80,900.44
  6. Step 6: Final answer
    x = 62,226.74

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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.