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Finding the Fourth Proportional to 276,354.01, 414,030.43 and 126,719.47

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Solution

The fourth proportional to 276,354.01, 414,030.43 and 126,719.47 is: 189,849.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,354.01 : 414,030.43 = 126,719.47 : x
  2. Step 2: Convert to fraction form
    276,354.01/414,030.43 = 126,719.47/x
  3. Step 3: Cross multiply
    276,354.01x = 414,030.43 × 126,719.47
  4. Step 4: Simplify right side
    276,354.01x = 52,465,716,653.47
  5. Step 5: Solve for x
    x = 52,465,716,653.47/276,354.01
  6. Step 6: Final answer
    x = 189,849.67

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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.