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Finding the Fourth Proportional to 68,144.80, 94,039.14 and 37,929.64

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Solution

The fourth proportional to 68,144.80, 94,039.14 and 37,929.64 is: 52,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,144.80 : 94,039.14 = 37,929.64 : x
  2. Step 2: Convert to fraction form
    68,144.80/94,039.14 = 37,929.64/x
  3. Step 3: Cross multiply
    68,144.80x = 94,039.14 × 37,929.64
  4. Step 4: Simplify right side
    68,144.80x = 3,566,870,726.11
  5. Step 5: Solve for x
    x = 3,566,870,726.11/68,144.80
  6. Step 6: Final answer
    x = 52,342.52

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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.