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Finding the Fourth Proportional to 126,449.54, 189,672.42 and 37,703.42

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Solution

The fourth proportional to 126,449.54, 189,672.42 and 37,703.42 is: 56,554.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,449.54 : 189,672.42 = 37,703.42 : x
  2. Step 2: Convert to fraction form
    126,449.54/189,672.42 = 37,703.42/x
  3. Step 3: Cross multiply
    126,449.54x = 189,672.42 × 37,703.42
  4. Step 4: Simplify right side
    126,449.54x = 7,151,298,913.68
  5. Step 5: Solve for x
    x = 7,151,298,913.68/126,449.54
  6. Step 6: Final answer
    x = 56,554.57

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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.