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Finding the Fourth Proportional to 315,651.06, 435,309.93 and 246,749.63

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Solution

The fourth proportional to 315,651.06, 435,309.93 and 246,749.63 is: 340,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,651.06 : 435,309.93 = 246,749.63 : x
  2. Step 2: Convert to fraction form
    315,651.06/435,309.93 = 246,749.63/x
  3. Step 3: Cross multiply
    315,651.06x = 435,309.93 × 246,749.63
  4. Step 4: Simplify right side
    315,651.06x = 107,412,561,986.28
  5. Step 5: Solve for x
    x = 107,412,561,986.28/315,651.06
  6. Step 6: Final answer
    x = 340,288.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.