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Finding the Fourth Proportional to 125,969.72, 173,836.14 and 69,386.36

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Solution

The fourth proportional to 125,969.72, 173,836.14 and 69,386.36 is: 95,752.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,969.72 : 173,836.14 = 69,386.36 : x
  2. Step 2: Convert to fraction form
    125,969.72/173,836.14 = 69,386.36/x
  3. Step 3: Cross multiply
    125,969.72x = 173,836.14 × 69,386.36
  4. Step 4: Simplify right side
    125,969.72x = 12,061,856,991.05
  5. Step 5: Solve for x
    x = 12,061,856,991.05/125,969.72
  6. Step 6: Final answer
    x = 95,752.03

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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.