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Finding the Fourth Proportional to 70,474.10, 105,710.67 and 17,165.43

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Solution

The fourth proportional to 70,474.10, 105,710.67 and 17,165.43 is: 25,748.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,474.10 : 105,710.67 = 17,165.43 : x
  2. Step 2: Convert to fraction form
    70,474.10/105,710.67 = 17,165.43/x
  3. Step 3: Cross multiply
    70,474.10x = 105,710.67 × 17,165.43
  4. Step 4: Simplify right side
    70,474.10x = 1,814,569,106.14
  5. Step 5: Solve for x
    x = 1,814,569,106.14/70,474.10
  6. Step 6: Final answer
    x = 25,748.03

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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.