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Finding the Fourth Proportional to 78,063.21, 107,732.43 and 44,059.62

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Solution

The fourth proportional to 78,063.21, 107,732.43 and 44,059.62 is: 60,805.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,063.21 : 107,732.43 = 44,059.62 : x
  2. Step 2: Convert to fraction form
    78,063.21/107,732.43 = 44,059.62/x
  3. Step 3: Cross multiply
    78,063.21x = 107,732.43 × 44,059.62
  4. Step 4: Simplify right side
    78,063.21x = 4,746,649,927.48
  5. Step 5: Solve for x
    x = 4,746,649,927.48/78,063.21
  6. Step 6: Final answer
    x = 60,805.21

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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.