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Finding the Fourth Proportional to 125,664.84, 173,428.02 and 69,086.88

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Solution

The fourth proportional to 125,664.84, 173,428.02 and 69,086.88 is: 95,345.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,664.84 : 173,428.02 = 69,086.88 : x
  2. Step 2: Convert to fraction form
    125,664.84/173,428.02 = 69,086.88/x
  3. Step 3: Cross multiply
    125,664.84x = 173,428.02 × 69,086.88
  4. Step 4: Simplify right side
    125,664.84x = 11,981,600,806.38
  5. Step 5: Solve for x
    x = 11,981,600,806.38/125,664.84
  6. Step 6: Final answer
    x = 95,345.69

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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.