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Finding the Fourth Proportional to 363,616.68, 545,449.86 and 123,632.88

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Solution

The fourth proportional to 363,616.68, 545,449.86 and 123,632.88 is: 185,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,616.68 : 545,449.86 = 123,632.88 : x
  2. Step 2: Convert to fraction form
    363,616.68/545,449.86 = 123,632.88/x
  3. Step 3: Cross multiply
    363,616.68x = 545,449.86 × 123,632.88
  4. Step 4: Simplify right side
    363,616.68x = 67,435,537,087.40
  5. Step 5: Solve for x
    x = 67,435,537,087.40/363,616.68
  6. Step 6: Final answer
    x = 185,457.77

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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.