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Finding the Fourth Proportional to 363,426.39, 545,251.23 and 186,057.90

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Solution

The fourth proportional to 363,426.39, 545,251.23 and 186,057.90 is: 279,144.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,426.39 : 545,251.23 = 186,057.90 : x
  2. Step 2: Convert to fraction form
    363,426.39/545,251.23 = 186,057.90/x
  3. Step 3: Cross multiply
    363,426.39x = 545,251.23 × 186,057.90
  4. Step 4: Simplify right side
    363,426.39x = 101,448,298,826.22
  5. Step 5: Solve for x
    x = 101,448,298,826.22/363,426.39
  6. Step 6: Final answer
    x = 279,144.01

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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.