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Finding the Fourth Proportional to 225,406.98, 311,040.09 and 134,744.94

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Solution

The fourth proportional to 225,406.98, 311,040.09 and 134,744.94 is: 185,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,406.98 : 311,040.09 = 134,744.94 : x
  2. Step 2: Convert to fraction form
    225,406.98/311,040.09 = 134,744.94/x
  3. Step 3: Cross multiply
    225,406.98x = 311,040.09 × 134,744.94
  4. Step 4: Simplify right side
    225,406.98x = 41,911,078,264.64
  5. Step 5: Solve for x
    x = 41,911,078,264.64/225,406.98
  6. Step 6: Final answer
    x = 185,935.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.