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Finding the Fourth Proportional to 99,483.36, 149,220.18 and 37,149

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Solution

The fourth proportional to 99,483.36, 149,220.18 and 37,149 is: 55,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,483.36 : 149,220.18 = 37,149 : x
  2. Step 2: Convert to fraction form
    99,483.36/149,220.18 = 37,149/x
  3. Step 3: Cross multiply
    99,483.36x = 149,220.18 × 37,149
  4. Step 4: Simplify right side
    99,483.36x = 5,543,380,466.82
  5. Step 5: Solve for x
    x = 5,543,380,466.82/99,483.36
  6. Step 6: Final answer
    x = 55,721.69

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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.