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Finding the Fourth Proportional to 246,475.65, 369,660.09 and 78,009.67

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Solution

The fourth proportional to 246,475.65, 369,660.09 and 78,009.67 is: 116,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,475.65 : 369,660.09 = 78,009.67 : x
  2. Step 2: Convert to fraction form
    246,475.65/369,660.09 = 78,009.67/x
  3. Step 3: Cross multiply
    246,475.65x = 369,660.09 × 78,009.67
  4. Step 4: Simplify right side
    246,475.65x = 28,837,061,633.07
  5. Step 5: Solve for x
    x = 28,837,061,633.07/246,475.65
  6. Step 6: Final answer
    x = 116,997.61

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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.