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Finding the Fourth Proportional to 505,296.52, 757,690.53 and 168,216.94

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Solution

The fourth proportional to 505,296.52, 757,690.53 and 168,216.94 is: 252,240.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,296.52 : 757,690.53 = 168,216.94 : x
  2. Step 2: Convert to fraction form
    505,296.52/757,690.53 = 168,216.94/x
  3. Step 3: Cross multiply
    505,296.52x = 757,690.53 × 168,216.94
  4. Step 4: Simplify right side
    505,296.52x = 127,456,382,423.58
  5. Step 5: Solve for x
    x = 127,456,382,423.58/505,296.52
  6. Step 6: Final answer
    x = 252,240.77

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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.