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Finding the Fourth Proportional to 70,245.71, 105,375.48 and 25,862.08

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Solution

The fourth proportional to 70,245.71, 105,375.48 and 25,862.08 is: 38,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,245.71 : 105,375.48 = 25,862.08 : x
  2. Step 2: Convert to fraction form
    70,245.71/105,375.48 = 25,862.08/x
  3. Step 3: Cross multiply
    70,245.71x = 105,375.48 × 25,862.08
  4. Step 4: Simplify right side
    70,245.71x = 2,725,229,093.80
  5. Step 5: Solve for x
    x = 2,725,229,093.80/70,245.71
  6. Step 6: Final answer
    x = 38,795.67

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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.