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Finding the Fourth Proportional to 78,000.73, 107,631.75 and 44,007.23

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Solution

The fourth proportional to 78,000.73, 107,631.75 and 44,007.23 is: 60,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,000.73 : 107,631.75 = 44,007.23 : x
  2. Step 2: Convert to fraction form
    78,000.73/107,631.75 = 44,007.23/x
  3. Step 3: Cross multiply
    78,000.73x = 107,631.75 × 44,007.23
  4. Step 4: Simplify right side
    78,000.73x = 4,736,575,611.66
  5. Step 5: Solve for x
    x = 4,736,575,611.66/78,000.73
  6. Step 6: Final answer
    x = 60,724.76

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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.