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Finding the Fourth Proportional to 125,908.10, 173,754.22 and 68,547.81

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Solution

The fourth proportional to 125,908.10, 173,754.22 and 68,547.81 is: 94,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,908.10 : 173,754.22 = 68,547.81 : x
  2. Step 2: Convert to fraction form
    125,908.10/173,754.22 = 68,547.81/x
  3. Step 3: Cross multiply
    125,908.10x = 173,754.22 × 68,547.81
  4. Step 4: Simplify right side
    125,908.10x = 11,910,471,087.89
  5. Step 5: Solve for x
    x = 11,910,471,087.89/125,908.10
  6. Step 6: Final answer
    x = 94,596.55

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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.