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Finding the Fourth Proportional to 70,968.55, 106,469.90 and 26,595.68

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Solution

The fourth proportional to 70,968.55, 106,469.90 and 26,595.68 is: 39,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,968.55 : 106,469.90 = 26,595.68 : x
  2. Step 2: Convert to fraction form
    70,968.55/106,469.90 = 26,595.68/x
  3. Step 3: Cross multiply
    70,968.55x = 106,469.90 × 26,595.68
  4. Step 4: Simplify right side
    70,968.55x = 2,831,639,722.70
  5. Step 5: Solve for x
    x = 2,831,639,722.70/70,968.55
  6. Step 6: Final answer
    x = 39,899.93

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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.