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Finding the Fourth Proportional to 89,879.98, 134,846.90 and 26,702.21

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Solution

The fourth proportional to 89,879.98, 134,846.90 and 26,702.21 is: 40,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,879.98 : 134,846.90 = 26,702.21 : x
  2. Step 2: Convert to fraction form
    89,879.98/134,846.90 = 26,702.21/x
  3. Step 3: Cross multiply
    89,879.98x = 134,846.90 × 26,702.21
  4. Step 4: Simplify right side
    89,879.98x = 3,600,710,241.65
  5. Step 5: Solve for x
    x = 3,600,710,241.65/89,879.98
  6. Step 6: Final answer
    x = 40,061.32

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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.