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Finding the Fourth Proportional to 468,431.90, 702,217.28 and 168,839.15

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Solution

The fourth proportional to 468,431.90, 702,217.28 and 168,839.15 is: 253,103.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,431.90 : 702,217.28 = 168,839.15 : x
  2. Step 2: Convert to fraction form
    468,431.90/702,217.28 = 168,839.15/x
  3. Step 3: Cross multiply
    468,431.90x = 702,217.28 × 168,839.15
  4. Step 4: Simplify right side
    468,431.90x = 118,561,764,315.23
  5. Step 5: Solve for x
    x = 118,561,764,315.23/468,431.90
  6. Step 6: Final answer
    x = 253,103.53

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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.