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Finding the Fourth Proportional to 125,855.97, 173,677.93 and 68,496.40

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Solution

The fourth proportional to 125,855.97, 173,677.93 and 68,496.40 is: 94,523.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,855.97 : 173,677.93 = 68,496.40 : x
  2. Step 2: Convert to fraction form
    125,855.97/173,677.93 = 68,496.40/x
  3. Step 3: Cross multiply
    125,855.97x = 173,677.93 × 68,496.40
  4. Step 4: Simplify right side
    125,855.97x = 11,896,312,964.45
  5. Step 5: Solve for x
    x = 11,896,312,964.45/125,855.97
  6. Step 6: Final answer
    x = 94,523.23

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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.