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Finding the Fourth Proportional to 70,187.67, 105,269.97 and 25,199.71

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Solution

The fourth proportional to 70,187.67, 105,269.97 and 25,199.71 is: 37,795.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,187.67 : 105,269.97 = 25,199.71 : x
  2. Step 2: Convert to fraction form
    70,187.67/105,269.97 = 25,199.71/x
  3. Step 3: Cross multiply
    70,187.67x = 105,269.97 × 25,199.71
  4. Step 4: Simplify right side
    70,187.67x = 2,652,772,715.71
  5. Step 5: Solve for x
    x = 2,652,772,715.71/70,187.67
  6. Step 6: Final answer
    x = 37,795.42

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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.