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Finding the Fourth Proportional to 78,164.55, 107,866.62 and 44,184.04

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Solution

The fourth proportional to 78,164.55, 107,866.62 and 44,184.04 is: 60,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,164.55 : 107,866.62 = 44,184.04 : x
  2. Step 2: Convert to fraction form
    78,164.55/107,866.62 = 44,184.04/x
  3. Step 3: Cross multiply
    78,164.55x = 107,866.62 × 44,184.04
  4. Step 4: Simplify right side
    78,164.55x = 4,765,982,783.08
  5. Step 5: Solve for x
    x = 4,765,982,783.08/78,164.55
  6. Step 6: Final answer
    x = 60,973.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.