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Finding the Fourth Proportional to 78,892.44, 118,339.76 and 44,053.80

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Solution

The fourth proportional to 78,892.44, 118,339.76 and 44,053.80 is: 66,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,892.44 : 118,339.76 = 44,053.80 : x
  2. Step 2: Convert to fraction form
    78,892.44/118,339.76 = 44,053.80/x
  3. Step 3: Cross multiply
    78,892.44x = 118,339.76 × 44,053.80
  4. Step 4: Simplify right side
    78,892.44x = 5,213,316,119.09
  5. Step 5: Solve for x
    x = 5,213,316,119.09/78,892.44
  6. Step 6: Final answer
    x = 66,081.31

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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.