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Finding the Fourth Proportional to 505,697.16, 758,291.78 and 168,618.48

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Solution

The fourth proportional to 505,697.16, 758,291.78 and 168,618.48 is: 252,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,697.16 : 758,291.78 = 168,618.48 : x
  2. Step 2: Convert to fraction form
    505,697.16/758,291.78 = 168,618.48/x
  3. Step 3: Cross multiply
    505,697.16x = 758,291.78 × 168,618.48
  4. Step 4: Simplify right side
    505,697.16x = 127,862,006,497.00
  5. Step 5: Solve for x
    x = 127,862,006,497.00/505,697.16
  6. Step 6: Final answer
    x = 252,843.04

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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.