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Finding the Fourth Proportional to 100,063.73, 149,947.04 and 55,629.35

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Solution

The fourth proportional to 100,063.73, 149,947.04 and 55,629.35 is: 83,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,063.73 : 149,947.04 = 55,629.35 : x
  2. Step 2: Convert to fraction form
    100,063.73/149,947.04 = 55,629.35/x
  3. Step 3: Cross multiply
    100,063.73x = 149,947.04 × 55,629.35
  4. Step 4: Simplify right side
    100,063.73x = 8,341,455,341.74
  5. Step 5: Solve for x
    x = 8,341,455,341.74/100,063.73
  6. Step 6: Final answer
    x = 83,361.43

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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.