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Finding the Fourth Proportional to 79,703, 109,990.14 and 44,375

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Solution

The fourth proportional to 79,703, 109,990.14 and 44,375 is: 61,237.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,703 : 109,990.14 = 44,375 : x
  2. Step 2: Convert to fraction form
    79,703/109,990.14 = 44,375/x
  3. Step 3: Cross multiply
    79,703x = 109,990.14 × 44,375
  4. Step 4: Simplify right side
    79,703x = 4,880,812,462.50
  5. Step 5: Solve for x
    x = 4,880,812,462.50/79,703
  6. Step 6: Final answer
    x = 61,237.50

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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.