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Finding the Fourth Proportional to 70,789.53, 106,156.55 and 26,392.07

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Solution

The fourth proportional to 70,789.53, 106,156.55 and 26,392.07 is: 39,577.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,789.53 : 106,156.55 = 26,392.07 : x
  2. Step 2: Convert to fraction form
    70,789.53/106,156.55 = 26,392.07/x
  3. Step 3: Cross multiply
    70,789.53x = 106,156.55 × 26,392.07
  4. Step 4: Simplify right side
    70,789.53x = 2,801,690,435.82
  5. Step 5: Solve for x
    x = 2,801,690,435.82/70,789.53
  6. Step 6: Final answer
    x = 39,577.75

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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.