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Finding the Fourth Proportional to 351,903.95, 527,003.52 and 243,529.64

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Solution

The fourth proportional to 351,903.95, 527,003.52 and 243,529.64 is: 364,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,903.95 : 527,003.52 = 243,529.64 : x
  2. Step 2: Convert to fraction form
    351,903.95/527,003.52 = 243,529.64/x
  3. Step 3: Cross multiply
    351,903.95x = 527,003.52 × 243,529.64
  4. Step 4: Simplify right side
    351,903.95x = 128,340,976,286.69
  5. Step 5: Solve for x
    x = 128,340,976,286.69/351,903.95
  6. Step 6: Final answer
    x = 364,704.56

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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.