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Finding the Fourth Proportional to 104,110.72, 156,185.64 and 33,030.40

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Solution

The fourth proportional to 104,110.72, 156,185.64 and 33,030.40 is: 49,551.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,110.72 : 156,185.64 = 33,030.40 : x
  2. Step 2: Convert to fraction form
    104,110.72/156,185.64 = 33,030.40/x
  3. Step 3: Cross multiply
    104,110.72x = 156,185.64 × 33,030.40
  4. Step 4: Simplify right side
    104,110.72x = 5,158,874,163.46
  5. Step 5: Solve for x
    x = 5,158,874,163.46/104,110.72
  6. Step 6: Final answer
    x = 49,551.81

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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.