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Finding the Fourth Proportional to 55,090.99, 75,942.89 and 43,133.56

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Solution

The fourth proportional to 55,090.99, 75,942.89 and 43,133.56 is: 59,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,090.99 : 75,942.89 = 43,133.56 : x
  2. Step 2: Convert to fraction form
    55,090.99/75,942.89 = 43,133.56/x
  3. Step 3: Cross multiply
    55,090.99x = 75,942.89 × 43,133.56
  4. Step 4: Simplify right side
    55,090.99x = 3,275,687,507.11
  5. Step 5: Solve for x
    x = 3,275,687,507.11/55,090.99
  6. Step 6: Final answer
    x = 59,459.59

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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.