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Finding the Fourth Proportional to 318,516.64, 477,698.41 and 93,816.37

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Solution

The fourth proportional to 318,516.64, 477,698.41 and 93,816.37 is: 140,702.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,516.64 : 477,698.41 = 93,816.37 : x
  2. Step 2: Convert to fraction form
    318,516.64/477,698.41 = 93,816.37/x
  3. Step 3: Cross multiply
    318,516.64x = 477,698.41 × 93,816.37
  4. Step 4: Simplify right side
    318,516.64x = 44,815,930,780.97
  5. Step 5: Solve for x
    x = 44,815,930,780.97/318,516.64
  6. Step 6: Final answer
    x = 140,702.01

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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.