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Finding the Fourth Proportional to 92,598.19, 138,719.79 and 55,044.56

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Solution

The fourth proportional to 92,598.19, 138,719.79 and 55,044.56 is: 82,461.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,598.19 : 138,719.79 = 55,044.56 : x
  2. Step 2: Convert to fraction form
    92,598.19/138,719.79 = 55,044.56/x
  3. Step 3: Cross multiply
    92,598.19x = 138,719.79 × 55,044.56
  4. Step 4: Simplify right side
    92,598.19x = 7,635,770,150.64
  5. Step 5: Solve for x
    x = 7,635,770,150.64/92,598.19
  6. Step 6: Final answer
    x = 82,461.33

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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.