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Finding the Fourth Proportional to 262,890.30, 394,249.05 and 96,656.70

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Solution

The fourth proportional to 262,890.30, 394,249.05 and 96,656.70 is: 144,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,890.30 : 394,249.05 = 96,656.70 : x
  2. Step 2: Convert to fraction form
    262,890.30/394,249.05 = 96,656.70/x
  3. Step 3: Cross multiply
    262,890.30x = 394,249.05 × 96,656.70
  4. Step 4: Simplify right side
    262,890.30x = 38,106,812,151.14
  5. Step 5: Solve for x
    x = 38,106,812,151.14/262,890.30
  6. Step 6: Final answer
    x = 144,953.28

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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.