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Finding the Fourth Proportional to 567,428.31, 851,266.98 and 168,100.32

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Solution

The fourth proportional to 567,428.31, 851,266.98 and 168,100.32 is: 252,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,428.31 : 851,266.98 = 168,100.32 : x
  2. Step 2: Convert to fraction form
    567,428.31/851,266.98 = 168,100.32/x
  3. Step 3: Cross multiply
    567,428.31x = 851,266.98 × 168,100.32
  4. Step 4: Simplify right side
    567,428.31x = 143,098,251,743.43
  5. Step 5: Solve for x
    x = 143,098,251,743.43/567,428.31
  6. Step 6: Final answer
    x = 252,187.37

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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.