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Finding the Fourth Proportional to 77,363.90, 115,959.45 and 44,099.90

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Solution

The fourth proportional to 77,363.90, 115,959.45 and 44,099.90 is: 66,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,363.90 : 115,959.45 = 44,099.90 : x
  2. Step 2: Convert to fraction form
    77,363.90/115,959.45 = 44,099.90/x
  3. Step 3: Cross multiply
    77,363.90x = 115,959.45 × 44,099.90
  4. Step 4: Simplify right side
    77,363.90x = 5,113,800,149.06
  5. Step 5: Solve for x
    x = 5,113,800,149.06/77,363.90
  6. Step 6: Final answer
    x = 66,100.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.