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Finding the Fourth Proportional to 78,069.54, 107,736.30 and 44,079.52

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Solution

The fourth proportional to 78,069.54, 107,736.30 and 44,079.52 is: 60,829.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,069.54 : 107,736.30 = 44,079.52 : x
  2. Step 2: Convert to fraction form
    78,069.54/107,736.30 = 44,079.52/x
  3. Step 3: Cross multiply
    78,069.54x = 107,736.30 × 44,079.52
  4. Step 4: Simplify right side
    78,069.54x = 4,748,964,390.58
  5. Step 5: Solve for x
    x = 4,748,964,390.58/78,069.54
  6. Step 6: Final answer
    x = 60,829.93

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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.