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Finding the Fourth Proportional to 92,010.30, 138,015.42 and 29,680.80

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Solution

The fourth proportional to 92,010.30, 138,015.42 and 29,680.80 is: 44,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,010.30 : 138,015.42 = 29,680.80 : x
  2. Step 2: Convert to fraction form
    92,010.30/138,015.42 = 29,680.80/x
  3. Step 3: Cross multiply
    92,010.30x = 138,015.42 × 29,680.80
  4. Step 4: Simplify right side
    92,010.30x = 4,096,408,077.94
  5. Step 5: Solve for x
    x = 4,096,408,077.94/92,010.30
  6. Step 6: Final answer
    x = 44,521.19

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1.5x scale

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.