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Finding the Fourth Proportional to 70,532.43, 105,806.67 and 25,574.95

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Solution

The fourth proportional to 70,532.43, 105,806.67 and 25,574.95 is: 38,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,532.43 : 105,806.67 = 25,574.95 : x
  2. Step 2: Convert to fraction form
    70,532.43/105,806.67 = 25,574.95/x
  3. Step 3: Cross multiply
    70,532.43x = 105,806.67 × 25,574.95
  4. Step 4: Simplify right side
    70,532.43x = 2,706,000,167.04
  5. Step 5: Solve for x
    x = 2,706,000,167.04/70,532.43
  6. Step 6: Final answer
    x = 38,365.34

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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.