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Finding the Fourth Proportional to 92,370.48, 138,579.30 and 25,810.80

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Solution

The fourth proportional to 92,370.48, 138,579.30 and 25,810.80 is: 38,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,370.48 : 138,579.30 = 25,810.80 : x
  2. Step 2: Convert to fraction form
    92,370.48/138,579.30 = 25,810.80/x
  3. Step 3: Cross multiply
    92,370.48x = 138,579.30 × 25,810.80
  4. Step 4: Simplify right side
    92,370.48x = 3,576,842,596.44
  5. Step 5: Solve for x
    x = 3,576,842,596.44/92,370.48
  6. Step 6: Final answer
    x = 38,722.79

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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.