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Finding the Fourth Proportional to 368,846.92, 509,003.73 and 207,703.90

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Solution

The fourth proportional to 368,846.92, 509,003.73 and 207,703.90 is: 286,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,846.92 : 509,003.73 = 207,703.90 : x
  2. Step 2: Convert to fraction form
    368,846.92/509,003.73 = 207,703.90/x
  3. Step 3: Cross multiply
    368,846.92x = 509,003.73 × 207,703.90
  4. Step 4: Simplify right side
    368,846.92x = 105,722,059,835.55
  5. Step 5: Solve for x
    x = 105,722,059,835.55/368,846.92
  6. Step 6: Final answer
    x = 286,628.56

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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.