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Finding the Fourth Proportional to 68,906.66, 95,106 and 42,043.40

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Solution

The fourth proportional to 68,906.66, 95,106 and 42,043.40 is: 58,028.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,906.66 : 95,106 = 42,043.40 : x
  2. Step 2: Convert to fraction form
    68,906.66/95,106 = 42,043.40/x
  3. Step 3: Cross multiply
    68,906.66x = 95,106 × 42,043.40
  4. Step 4: Simplify right side
    68,906.66x = 3,998,579,600.40
  5. Step 5: Solve for x
    x = 3,998,579,600.40/68,906.66
  6. Step 6: Final answer
    x = 58,028.93

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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.