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Finding the Fourth Proportional to 363,249.50, 544,868.78 and 163,428.78

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Solution

The fourth proportional to 363,249.50, 544,868.78 and 163,428.78 is: 245,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,249.50 : 544,868.78 = 163,428.78 : x
  2. Step 2: Convert to fraction form
    363,249.50/544,868.78 = 163,428.78/x
  3. Step 3: Cross multiply
    363,249.50x = 544,868.78 × 163,428.78
  4. Step 4: Simplify right side
    363,249.50x = 89,047,239,158.34
  5. Step 5: Solve for x
    x = 89,047,239,158.34/363,249.50
  6. Step 6: Final answer
    x = 245,140.71

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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.