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Finding the Fourth Proportional to 92,497.70, 138,730.90 and 25,922.50

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Solution

The fourth proportional to 92,497.70, 138,730.90 and 25,922.50 is: 38,879.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,497.70 : 138,730.90 = 25,922.50 : x
  2. Step 2: Convert to fraction form
    92,497.70/138,730.90 = 25,922.50/x
  3. Step 3: Cross multiply
    92,497.70x = 138,730.90 × 25,922.50
  4. Step 4: Simplify right side
    92,497.70x = 3,596,252,099.68
  5. Step 5: Solve for x
    x = 3,596,252,099.68/92,497.70
  6. Step 6: Final answer
    x = 38,879.37

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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.