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Finding the Fourth Proportional to 68,241.96, 102,373.92 and 28,804.95

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Solution

The fourth proportional to 68,241.96, 102,373.92 and 28,804.95 is: 43,212.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,241.96 : 102,373.92 = 28,804.95 : x
  2. Step 2: Convert to fraction form
    68,241.96/102,373.92 = 28,804.95/x
  3. Step 3: Cross multiply
    68,241.96x = 102,373.92 × 28,804.95
  4. Step 4: Simplify right side
    68,241.96x = 2,948,875,646.90
  5. Step 5: Solve for x
    x = 2,948,875,646.90/68,241.96
  6. Step 6: Final answer
    x = 43,212.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.