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Finding the Fourth Proportional to 89,002.70, 133,508.15 and 49,530.08

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Solution

The fourth proportional to 89,002.70, 133,508.15 and 49,530.08 is: 74,297.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,002.70 : 133,508.15 = 49,530.08 : x
  2. Step 2: Convert to fraction form
    89,002.70/133,508.15 = 49,530.08/x
  3. Step 3: Cross multiply
    89,002.70x = 133,508.15 × 49,530.08
  4. Step 4: Simplify right side
    89,002.70x = 6,612,669,622.01
  5. Step 5: Solve for x
    x = 6,612,669,622.01/89,002.70
  6. Step 6: Final answer
    x = 74,297.41

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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.