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Finding the Fourth Proportional to 273,235.40, 409,415.70 and 179,631.80

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Solution

The fourth proportional to 273,235.40, 409,415.70 and 179,631.80 is: 269,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,235.40 : 409,415.70 = 179,631.80 : x
  2. Step 2: Convert to fraction form
    273,235.40/409,415.70 = 179,631.80/x
  3. Step 3: Cross multiply
    273,235.40x = 409,415.70 × 179,631.80
  4. Step 4: Simplify right side
    273,235.40x = 73,544,079,139.26
  5. Step 5: Solve for x
    x = 73,544,079,139.26/273,235.40
  6. Step 6: Final answer
    x = 269,160.14

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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.