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Finding the Fourth Proportional to 68,953.71, 95,156.46 and 40,293.69

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Solution

The fourth proportional to 68,953.71, 95,156.46 and 40,293.69 is: 55,605.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953.71 : 95,156.46 = 40,293.69 : x
  2. Step 2: Convert to fraction form
    68,953.71/95,156.46 = 40,293.69/x
  3. Step 3: Cross multiply
    68,953.71x = 95,156.46 × 40,293.69
  4. Step 4: Simplify right side
    68,953.71x = 3,834,204,900.74
  5. Step 5: Solve for x
    x = 3,834,204,900.74/68,953.71
  6. Step 6: Final answer
    x = 55,605.49

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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.