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Finding the Fourth Proportional to 163,711.67, 245,661.66 and 68,934.38

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Solution

The fourth proportional to 163,711.67, 245,661.66 and 68,934.38 is: 103,441.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,711.67 : 245,661.66 = 68,934.38 : x
  2. Step 2: Convert to fraction form
    163,711.67/245,661.66 = 68,934.38/x
  3. Step 3: Cross multiply
    163,711.67x = 245,661.66 × 68,934.38
  4. Step 4: Simplify right side
    163,711.67x = 16,934,532,993.56
  5. Step 5: Solve for x
    x = 16,934,532,993.56/163,711.67
  6. Step 6: Final answer
    x = 103,441.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.