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Finding the Fourth Proportional to 125,576, 173,294.95 and 68,991.02

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Solution

The fourth proportional to 125,576, 173,294.95 and 68,991.02 is: 95,207.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,576 : 173,294.95 = 68,991.02 : x
  2. Step 2: Convert to fraction form
    125,576/173,294.95 = 68,991.02/x
  3. Step 3: Cross multiply
    125,576x = 173,294.95 × 68,991.02
  4. Step 4: Simplify right side
    125,576x = 11,955,795,361.35
  5. Step 5: Solve for x
    x = 11,955,795,361.35/125,576
  6. Step 6: Final answer
    x = 95,207.65

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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.