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Finding the Fourth Proportional to 104,878.98, 157,316.94 and 25,992.66

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Solution

The fourth proportional to 104,878.98, 157,316.94 and 25,992.66 is: 38,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,878.98 : 157,316.94 = 25,992.66 : x
  2. Step 2: Convert to fraction form
    104,878.98/157,316.94 = 25,992.66/x
  3. Step 3: Cross multiply
    104,878.98x = 157,316.94 × 25,992.66
  4. Step 4: Simplify right side
    104,878.98x = 4,089,085,733.66
  5. Step 5: Solve for x
    x = 4,089,085,733.66/104,878.98
  6. Step 6: Final answer
    x = 38,988.61

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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.