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Finding the Fourth Proportional to 55,812.60, 83,611.98 and 53,936.64

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Solution

The fourth proportional to 55,812.60, 83,611.98 and 53,936.64 is: 80,801.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,812.60 : 83,611.98 = 53,936.64 : x
  2. Step 2: Convert to fraction form
    55,812.60/83,611.98 = 53,936.64/x
  3. Step 3: Cross multiply
    55,812.60x = 83,611.98 × 53,936.64
  4. Step 4: Simplify right side
    55,812.60x = 4,509,749,264.95
  5. Step 5: Solve for x
    x = 4,509,749,264.95/55,812.60
  6. Step 6: Final answer
    x = 80,801.63

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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.