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Finding the Fourth Proportional to 88,717.60, 133,076.40 and 26,388.10

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Solution

The fourth proportional to 88,717.60, 133,076.40 and 26,388.10 is: 39,582.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,717.60 : 133,076.40 = 26,388.10 : x
  2. Step 2: Convert to fraction form
    88,717.60/133,076.40 = 26,388.10/x
  3. Step 3: Cross multiply
    88,717.60x = 133,076.40 × 26,388.10
  4. Step 4: Simplify right side
    88,717.60x = 3,511,633,350.84
  5. Step 5: Solve for x
    x = 3,511,633,350.84/88,717.60
  6. Step 6: Final answer
    x = 39,582.15

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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.