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Finding the Fourth Proportional to 104,606.74, 156,908.74 and 25,721.65

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Solution

The fourth proportional to 104,606.74, 156,908.74 and 25,721.65 is: 38,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,606.74 : 156,908.74 = 25,721.65 : x
  2. Step 2: Convert to fraction form
    104,606.74/156,908.74 = 25,721.65/x
  3. Step 3: Cross multiply
    104,606.74x = 156,908.74 × 25,721.65
  4. Step 4: Simplify right side
    104,606.74x = 4,035,951,235.65
  5. Step 5: Solve for x
    x = 4,035,951,235.65/104,606.74
  6. Step 6: Final answer
    x = 38,582.13

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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.