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Finding the Fourth Proportional to 68,318.66, 94,323.62 and 42,859.94

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Solution

The fourth proportional to 68,318.66, 94,323.62 and 42,859.94 is: 59,174.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,318.66 : 94,323.62 = 42,859.94 : x
  2. Step 2: Convert to fraction form
    68,318.66/94,323.62 = 42,859.94/x
  3. Step 3: Cross multiply
    68,318.66x = 94,323.62 × 42,859.94
  4. Step 4: Simplify right side
    68,318.66x = 4,042,704,329.31
  5. Step 5: Solve for x
    x = 4,042,704,329.31/68,318.66
  6. Step 6: Final answer
    x = 59,174.23

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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.