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Finding the Fourth Proportional to 363,462.28, 545,037.90 and 126,734.92

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Solution

The fourth proportional to 363,462.28, 545,037.90 and 126,734.92 is: 190,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,462.28 : 545,037.90 = 126,734.92 : x
  2. Step 2: Convert to fraction form
    363,462.28/545,037.90 = 126,734.92/x
  3. Step 3: Cross multiply
    363,462.28x = 545,037.90 × 126,734.92
  4. Step 4: Simplify right side
    363,462.28x = 69,075,334,653.47
  5. Step 5: Solve for x
    x = 69,075,334,653.47/363,462.28
  6. Step 6: Final answer
    x = 190,048.15

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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.