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Finding the Fourth Proportional to 76,695.58, 105,805.74 and 44,850.43

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Solution

The fourth proportional to 76,695.58, 105,805.74 and 44,850.43 is: 61,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,695.58 : 105,805.74 = 44,850.43 : x
  2. Step 2: Convert to fraction form
    76,695.58/105,805.74 = 44,850.43/x
  3. Step 3: Cross multiply
    76,695.58x = 105,805.74 × 44,850.43
  4. Step 4: Simplify right side
    76,695.58x = 4,745,432,935.47
  5. Step 5: Solve for x
    x = 4,745,432,935.47/76,695.58
  6. Step 6: Final answer
    x = 61,873.62

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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.