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Finding the Fourth Proportional to 92,270.70, 138,406.14 and 25,711.02

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Solution

The fourth proportional to 92,270.70, 138,406.14 and 25,711.02 is: 38,566.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,270.70 : 138,406.14 = 25,711.02 : x
  2. Step 2: Convert to fraction form
    92,270.70/138,406.14 = 25,711.02/x
  3. Step 3: Cross multiply
    92,270.70x = 138,406.14 × 25,711.02
  4. Step 4: Simplify right side
    92,270.70x = 3,558,563,033.66
  5. Step 5: Solve for x
    x = 3,558,563,033.66/92,270.70
  6. Step 6: Final answer
    x = 38,566.56

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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.