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Finding the Fourth Proportional to 70,855.64, 106,246.56 and 26,445.87

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Solution

The fourth proportional to 70,855.64, 106,246.56 and 26,445.87 is: 39,655.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,855.64 : 106,246.56 = 26,445.87 : x
  2. Step 2: Convert to fraction form
    70,855.64/106,246.56 = 26,445.87/x
  3. Step 3: Cross multiply
    70,855.64x = 106,246.56 × 26,445.87
  4. Step 4: Simplify right side
    70,855.64x = 2,809,782,581.48
  5. Step 5: Solve for x
    x = 2,809,782,581.48/70,855.64
  6. Step 6: Final answer
    x = 39,655.03

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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.