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Finding the Fourth Proportional to 325,805.00, 488,554.13 and 126,218.84

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Solution

The fourth proportional to 325,805.00, 488,554.13 and 126,218.84 is: 189,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,805.00 : 488,554.13 = 126,218.84 : x
  2. Step 2: Convert to fraction form
    325,805.00/488,554.13 = 126,218.84/x
  3. Step 3: Cross multiply
    325,805.00x = 488,554.13 × 126,218.84
  4. Step 4: Simplify right side
    325,805.00x = 61,664,733,438.59
  5. Step 5: Solve for x
    x = 61,664,733,438.59/325,805.00
  6. Step 6: Final answer
    x = 189,268.84

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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.