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Finding the Fourth Proportional to 125,605.92, 173,336.12 and 69,020.94

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Solution

The fourth proportional to 125,605.92, 173,336.12 and 69,020.94 is: 95,248.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,605.92 : 173,336.12 = 69,020.94 : x
  2. Step 2: Convert to fraction form
    125,605.92/173,336.12 = 69,020.94/x
  3. Step 3: Cross multiply
    125,605.92x = 173,336.12 × 69,020.94
  4. Step 4: Simplify right side
    125,605.92x = 11,963,821,938.35
  5. Step 5: Solve for x
    x = 11,963,821,938.35/125,605.92
  6. Step 6: Final answer
    x = 95,248.87

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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.