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Finding the Fourth Proportional to 363,903.50, 545,938.34 and 111,219.95

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Solution

The fourth proportional to 363,903.50, 545,938.34 and 111,219.95 is: 166,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,903.50 : 545,938.34 = 111,219.95 : x
  2. Step 2: Convert to fraction form
    363,903.50/545,938.34 = 111,219.95/x
  3. Step 3: Cross multiply
    363,903.50x = 545,938.34 × 111,219.95
  4. Step 4: Simplify right side
    363,903.50x = 60,719,234,877.88
  5. Step 5: Solve for x
    x = 60,719,234,877.88/363,903.50
  6. Step 6: Final answer
    x = 166,855.32

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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.