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Finding the Fourth Proportional to 70,251.98, 105,328.68 and 25,873.04

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Solution

The fourth proportional to 70,251.98, 105,328.68 and 25,873.04 is: 38,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,251.98 : 105,328.68 = 25,873.04 : x
  2. Step 2: Convert to fraction form
    70,251.98/105,328.68 = 25,873.04/x
  3. Step 3: Cross multiply
    70,251.98x = 105,328.68 × 25,873.04
  4. Step 4: Simplify right side
    70,251.98x = 2,725,173,150.79
  5. Step 5: Solve for x
    x = 2,725,173,150.79/70,251.98
  6. Step 6: Final answer
    x = 38,791.41

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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.