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Finding the Fourth Proportional to 124,694.54, 186,884.10 and 79,698.55

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Solution

The fourth proportional to 124,694.54, 186,884.10 and 79,698.55 is: 119,447.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,694.54 : 186,884.10 = 79,698.55 : x
  2. Step 2: Convert to fraction form
    124,694.54/186,884.10 = 79,698.55/x
  3. Step 3: Cross multiply
    124,694.54x = 186,884.10 × 79,698.55
  4. Step 4: Simplify right side
    124,694.54x = 14,894,392,457.73
  5. Step 5: Solve for x
    x = 14,894,392,457.73/124,694.54
  6. Step 6: Final answer
    x = 119,447.03

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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.