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Finding the Fourth Proportional to 125,646, 173,391.48 and 69,057.38

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Solution

The fourth proportional to 125,646, 173,391.48 and 69,057.38 is: 95,299.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,646 : 173,391.48 = 69,057.38 : x
  2. Step 2: Convert to fraction form
    125,646/173,391.48 = 69,057.38/x
  3. Step 3: Cross multiply
    125,646x = 173,391.48 × 69,057.38
  4. Step 4: Simplify right side
    125,646x = 11,973,960,456.17
  5. Step 5: Solve for x
    x = 11,973,960,456.17/125,646
  6. Step 6: Final answer
    x = 95,299.18

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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.