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Finding the Fourth Proportional to 333,860.88, 500,685.60 and 109,169.40

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Solution

The fourth proportional to 333,860.88, 500,685.60 and 109,169.40 is: 163,719.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,860.88 : 500,685.60 = 109,169.40 : x
  2. Step 2: Convert to fraction form
    333,860.88/500,685.60 = 109,169.40/x
  3. Step 3: Cross multiply
    333,860.88x = 500,685.60 × 109,169.40
  4. Step 4: Simplify right side
    333,860.88x = 54,659,546,540.64
  5. Step 5: Solve for x
    x = 54,659,546,540.64/333,860.88
  6. Step 6: Final answer
    x = 163,719.53

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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.