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Finding the Fourth Proportional to 567,634.72, 851,455.44 and 168,278.86

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Solution

The fourth proportional to 567,634.72, 851,455.44 and 168,278.86 is: 252,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,634.72 : 851,455.44 = 168,278.86 : x
  2. Step 2: Convert to fraction form
    567,634.72/851,455.44 = 168,278.86/x
  3. Step 3: Cross multiply
    567,634.72x = 851,455.44 × 168,278.86
  4. Step 4: Simplify right side
    567,634.72x = 143,281,950,784.00
  5. Step 5: Solve for x
    x = 143,281,950,784.00/567,634.72
  6. Step 6: Final answer
    x = 252,419.29

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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.