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Finding the Fourth Proportional to 318,551.56, 477,871.26 and 108,133

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Solution

The fourth proportional to 318,551.56, 477,871.26 and 108,133 is: 162,214.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,551.56 : 477,871.26 = 108,133 : x
  2. Step 2: Convert to fraction form
    318,551.56/477,871.26 = 108,133/x
  3. Step 3: Cross multiply
    318,551.56x = 477,871.26 × 108,133
  4. Step 4: Simplify right side
    318,551.56x = 51,673,652,957.58
  5. Step 5: Solve for x
    x = 51,673,652,957.58/318,551.56
  6. Step 6: Final answer
    x = 162,214.41

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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.