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Finding the Fourth Proportional to 70,271.37, 105,414.45 and 22,890.17

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Solution

The fourth proportional to 70,271.37, 105,414.45 and 22,890.17 is: 34,337.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,271.37 : 105,414.45 = 22,890.17 : x
  2. Step 2: Convert to fraction form
    70,271.37/105,414.45 = 22,890.17/x
  3. Step 3: Cross multiply
    70,271.37x = 105,414.45 × 22,890.17
  4. Step 4: Simplify right side
    70,271.37x = 2,412,954,153.88
  5. Step 5: Solve for x
    x = 2,412,954,153.88/70,271.37
  6. Step 6: Final answer
    x = 34,337.66

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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.