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Finding the Fourth Proportional to 89,949, 134,930.04 and 34,545

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Solution

The fourth proportional to 89,949, 134,930.04 and 34,545 is: 51,820.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,949 : 134,930.04 = 34,545 : x
  2. Step 2: Convert to fraction form
    89,949/134,930.04 = 34,545/x
  3. Step 3: Cross multiply
    89,949x = 134,930.04 × 34,545
  4. Step 4: Simplify right side
    89,949x = 4,661,158,231.80
  5. Step 5: Solve for x
    x = 4,661,158,231.80/89,949
  6. Step 6: Final answer
    x = 51,820.01

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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.