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Finding the Fourth Proportional to 68,412.83, 94,410 and 38,196.39

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Solution

The fourth proportional to 68,412.83, 94,410 and 38,196.39 is: 52,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.83 : 94,410 = 38,196.39 : x
  2. Step 2: Convert to fraction form
    68,412.83/94,410 = 38,196.39/x
  3. Step 3: Cross multiply
    68,412.83x = 94,410 × 38,196.39
  4. Step 4: Simplify right side
    68,412.83x = 3,606,121,179.90
  5. Step 5: Solve for x
    x = 3,606,121,179.90/68,412.83
  6. Step 6: Final answer
    x = 52,711.18

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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.