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Finding the Fourth Proportional to 76,701.45, 105,876.89 and 44,880.60

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Solution

The fourth proportional to 76,701.45, 105,876.89 and 44,880.60 is: 61,952.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,701.45 : 105,876.89 = 44,880.60 : x
  2. Step 2: Convert to fraction form
    76,701.45/105,876.89 = 44,880.60/x
  3. Step 3: Cross multiply
    76,701.45x = 105,876.89 × 44,880.60
  4. Step 4: Simplify right side
    76,701.45x = 4,751,818,349.33
  5. Step 5: Solve for x
    x = 4,751,818,349.33/76,701.45
  6. Step 6: Final answer
    x = 61,952.13

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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.