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Finding the Fourth Proportional to 273,041.10, 409,561.65 and 260,793.90

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Solution

The fourth proportional to 273,041.10, 409,561.65 and 260,793.90 is: 391,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,041.10 : 409,561.65 = 260,793.90 : x
  2. Step 2: Convert to fraction form
    273,041.10/409,561.65 = 260,793.90/x
  3. Step 3: Cross multiply
    273,041.10x = 409,561.65 × 260,793.90
  4. Step 4: Simplify right side
    273,041.10x = 106,811,179,993.94
  5. Step 5: Solve for x
    x = 106,811,179,993.94/273,041.10
  6. Step 6: Final answer
    x = 391,190.85

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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.