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Finding the Fourth Proportional to 89,878.88, 134,818.34 and 27,549.38

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Solution

The fourth proportional to 89,878.88, 134,818.34 and 27,549.38 is: 41,324.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,878.88 : 134,818.34 = 27,549.38 : x
  2. Step 2: Convert to fraction form
    89,878.88/134,818.34 = 27,549.38/x
  3. Step 3: Cross multiply
    89,878.88x = 134,818.34 × 27,549.38
  4. Step 4: Simplify right side
    89,878.88x = 3,714,160,867.79
  5. Step 5: Solve for x
    x = 3,714,160,867.79/89,878.88
  6. Step 6: Final answer
    x = 41,324.07

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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.