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Finding the Fourth Proportional to 318,643.56, 477,853.97 and 93,944.34

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Solution

The fourth proportional to 318,643.56, 477,853.97 and 93,944.34 is: 140,883.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,643.56 : 477,853.97 = 93,944.34 : x
  2. Step 2: Convert to fraction form
    318,643.56/477,853.97 = 93,944.34/x
  3. Step 3: Cross multiply
    318,643.56x = 477,853.97 × 93,944.34
  4. Step 4: Simplify right side
    318,643.56x = 44,891,675,358.31
  5. Step 5: Solve for x
    x = 44,891,675,358.31/318,643.56
  6. Step 6: Final answer
    x = 140,883.67

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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.