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Finding the Fourth Proportional to 318,576.76, 477,934.26 and 96,955

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Solution

The fourth proportional to 318,576.76, 477,934.26 and 96,955 is: 145,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,576.76 : 477,934.26 = 96,955 : x
  2. Step 2: Convert to fraction form
    318,576.76/477,934.26 = 96,955/x
  3. Step 3: Cross multiply
    318,576.76x = 477,934.26 × 96,955
  4. Step 4: Simplify right side
    318,576.76x = 46,338,116,178.30
  5. Step 5: Solve for x
    x = 46,338,116,178.30/318,576.76
  6. Step 6: Final answer
    x = 145,453.54

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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.