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Finding the Fourth Proportional to 104,778.65, 157,166.43 and 25,892.87

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Solution

The fourth proportional to 104,778.65, 157,166.43 and 25,892.87 is: 38,838.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,778.65 : 157,166.43 = 25,892.87 : x
  2. Step 2: Convert to fraction form
    104,778.65/157,166.43 = 25,892.87/x
  3. Step 3: Cross multiply
    104,778.65x = 157,166.43 × 25,892.87
  4. Step 4: Simplify right side
    104,778.65x = 4,069,489,940.35
  5. Step 5: Solve for x
    x = 4,069,489,940.35/104,778.65
  6. Step 6: Final answer
    x = 38,838.93

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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.