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Finding the Fourth Proportional to 70,976.97, 106,461.21 and 26,599.98

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Solution

The fourth proportional to 70,976.97, 106,461.21 and 26,599.98 is: 39,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,976.97 : 106,461.21 = 26,599.98 : x
  2. Step 2: Convert to fraction form
    70,976.97/106,461.21 = 26,599.98/x
  3. Step 3: Cross multiply
    70,976.97x = 106,461.21 × 26,599.98
  4. Step 4: Simplify right side
    70,976.97x = 2,831,866,056.78
  5. Step 5: Solve for x
    x = 2,831,866,056.78/70,976.97
  6. Step 6: Final answer
    x = 39,898.38

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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.