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Finding the Fourth Proportional to 70,237.69, 105,367.03 and 25,861.03

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Solution

The fourth proportional to 70,237.69, 105,367.03 and 25,861.03 is: 38,795.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,237.69 : 105,367.03 = 25,861.03 : x
  2. Step 2: Convert to fraction form
    70,237.69/105,367.03 = 25,861.03/x
  3. Step 3: Cross multiply
    70,237.69x = 105,367.03 × 25,861.03
  4. Step 4: Simplify right side
    70,237.69x = 2,724,899,595.77
  5. Step 5: Solve for x
    x = 2,724,899,595.77/70,237.69
  6. Step 6: Final answer
    x = 38,795.41

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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.