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Finding the Fourth Proportional to 124,179.80, 186,222.69 and 53,099.46

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Solution

The fourth proportional to 124,179.80, 186,222.69 and 53,099.46 is: 79,629.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,179.80 : 186,222.69 = 53,099.46 : x
  2. Step 2: Convert to fraction form
    124,179.80/186,222.69 = 53,099.46/x
  3. Step 3: Cross multiply
    124,179.80x = 186,222.69 × 53,099.46
  4. Step 4: Simplify right side
    124,179.80x = 9,888,324,278.75
  5. Step 5: Solve for x
    x = 9,888,324,278.75/124,179.80
  6. Step 6: Final answer
    x = 79,629.09

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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.