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Finding the Fourth Proportional to 98,188.44, 147,279.72 and 27,115.41

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Solution

The fourth proportional to 98,188.44, 147,279.72 and 27,115.41 is: 40,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,188.44 : 147,279.72 = 27,115.41 : x
  2. Step 2: Convert to fraction form
    98,188.44/147,279.72 = 27,115.41/x
  3. Step 3: Cross multiply
    98,188.44x = 147,279.72 × 27,115.41
  4. Step 4: Simplify right side
    98,188.44x = 3,993,549,992.49
  5. Step 5: Solve for x
    x = 3,993,549,992.49/98,188.44
  6. Step 6: Final answer
    x = 40,672.30

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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.