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Finding the Fourth Proportional to 69,790.92, 96,262.68 and 45,909.96

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Solution

The fourth proportional to 69,790.92, 96,262.68 and 45,909.96 is: 63,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,790.92 : 96,262.68 = 45,909.96 : x
  2. Step 2: Convert to fraction form
    69,790.92/96,262.68 = 45,909.96/x
  3. Step 3: Cross multiply
    69,790.92x = 96,262.68 × 45,909.96
  4. Step 4: Simplify right side
    69,790.92x = 4,419,415,788.29
  5. Step 5: Solve for x
    x = 4,419,415,788.29/69,790.92
  6. Step 6: Final answer
    x = 63,323.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.