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Finding the Fourth Proportional to 303,308.94, 418,567.78 and 167,344.50

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Solution

The fourth proportional to 303,308.94, 418,567.78 and 167,344.50 is: 230,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,308.94 : 418,567.78 = 167,344.50 : x
  2. Step 2: Convert to fraction form
    303,308.94/418,567.78 = 167,344.50/x
  3. Step 3: Cross multiply
    303,308.94x = 418,567.78 × 167,344.50
  4. Step 4: Simplify right side
    303,308.94x = 70,045,015,860.21
  5. Step 5: Solve for x
    x = 70,045,015,860.21/303,308.94
  6. Step 6: Final answer
    x = 230,936.21

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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.