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Finding the Fourth Proportional to 68,392.96, 94,377.25 and 39,713.19

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Solution

The fourth proportional to 68,392.96, 94,377.25 and 39,713.19 is: 54,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,392.96 : 94,377.25 = 39,713.19 : x
  2. Step 2: Convert to fraction form
    68,392.96/94,377.25 = 39,713.19/x
  3. Step 3: Cross multiply
    68,392.96x = 94,377.25 × 39,713.19
  4. Step 4: Simplify right side
    68,392.96x = 3,748,021,356.65
  5. Step 5: Solve for x
    x = 3,748,021,356.65/68,392.96
  6. Step 6: Final answer
    x = 54,801.28

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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.