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Finding the Fourth Proportional to 326,698.88, 490,066.79 and 116,336.84

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Solution

The fourth proportional to 326,698.88, 490,066.79 and 116,336.84 is: 174,511.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,698.88 : 490,066.79 = 116,336.84 : x
  2. Step 2: Convert to fraction form
    326,698.88/490,066.79 = 116,336.84/x
  3. Step 3: Cross multiply
    326,698.88x = 490,066.79 × 116,336.84
  4. Step 4: Simplify right side
    326,698.88x = 57,012,818,705.53
  5. Step 5: Solve for x
    x = 57,012,818,705.53/326,698.88
  6. Step 6: Final answer
    x = 174,511.83

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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.