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Finding the Fourth Proportional to 68,394.69, 94,389.42 and 38,185.95

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Solution

The fourth proportional to 68,394.69, 94,389.42 and 38,185.95 is: 52,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,394.69 : 94,389.42 = 38,185.95 : x
  2. Step 2: Convert to fraction form
    68,394.69/94,389.42 = 38,185.95/x
  3. Step 3: Cross multiply
    68,394.69x = 94,389.42 × 38,185.95
  4. Step 4: Simplify right side
    68,394.69x = 3,604,349,672.65
  5. Step 5: Solve for x
    x = 3,604,349,672.65/68,394.69
  6. Step 6: Final answer
    x = 52,699.26

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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.