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Finding the Fourth Proportional to 70,880.83, 106,343.12 and 26,512.07

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Solution

The fourth proportional to 70,880.83, 106,343.12 and 26,512.07 is: 39,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,880.83 : 106,343.12 = 26,512.07 : x
  2. Step 2: Convert to fraction form
    70,880.83/106,343.12 = 26,512.07/x
  3. Step 3: Cross multiply
    70,880.83x = 106,343.12 × 26,512.07
  4. Step 4: Simplify right side
    70,880.83x = 2,819,375,776.02
  5. Step 5: Solve for x
    x = 2,819,375,776.02/70,880.83
  6. Step 6: Final answer
    x = 39,776.28

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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.