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Finding the Fourth Proportional to 89,881.44, 134,817.12 and 27,551.76

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Solution

The fourth proportional to 89,881.44, 134,817.12 and 27,551.76 is: 41,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,881.44 : 134,817.12 = 27,551.76 : x
  2. Step 2: Convert to fraction form
    89,881.44/134,817.12 = 27,551.76/x
  3. Step 3: Cross multiply
    89,881.44x = 134,817.12 × 27,551.76
  4. Step 4: Simplify right side
    89,881.44x = 3,714,448,934.13
  5. Step 5: Solve for x
    x = 3,714,448,934.13/89,881.44
  6. Step 6: Final answer
    x = 41,326.10

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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.