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Finding the Fourth Proportional to 89,794.36, 134,691.54 and 49,837.87

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Solution

The fourth proportional to 89,794.36, 134,691.54 and 49,837.87 is: 74,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,794.36 : 134,691.54 = 49,837.87 : x
  2. Step 2: Convert to fraction form
    89,794.36/134,691.54 = 49,837.87/x
  3. Step 3: Cross multiply
    89,794.36x = 134,691.54 × 49,837.87
  4. Step 4: Simplify right side
    89,794.36x = 6,712,739,460.62
  5. Step 5: Solve for x
    x = 6,712,739,460.62/89,794.36
  6. Step 6: Final answer
    x = 74,756.81

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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.