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Finding the Fourth Proportional to 505,608.64, 758,415.89 and 168,648.44

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Solution

The fourth proportional to 505,608.64, 758,415.89 and 168,648.44 is: 252,973.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,608.64 : 758,415.89 = 168,648.44 : x
  2. Step 2: Convert to fraction form
    505,608.64/758,415.89 = 168,648.44/x
  3. Step 3: Cross multiply
    505,608.64x = 758,415.89 × 168,648.44
  4. Step 4: Simplify right side
    505,608.64x = 127,905,653,349.25
  5. Step 5: Solve for x
    x = 127,905,653,349.25/505,608.64
  6. Step 6: Final answer
    x = 252,973.63

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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.