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Finding the Fourth Proportional to 263,043.70, 394,565.55 and 96,810.10

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Solution

The fourth proportional to 263,043.70, 394,565.55 and 96,810.10 is: 145,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,043.70 : 394,565.55 = 96,810.10 : x
  2. Step 2: Convert to fraction form
    263,043.70/394,565.55 = 96,810.10/x
  3. Step 3: Cross multiply
    263,043.70x = 394,565.55 × 96,810.10
  4. Step 4: Simplify right side
    263,043.70x = 38,197,930,352.06
  5. Step 5: Solve for x
    x = 38,197,930,352.06/263,043.70
  6. Step 6: Final answer
    x = 145,215.15

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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.