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Finding the Fourth Proportional to 92,409.66, 138,631.56 and 29,245.68

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Solution

The fourth proportional to 92,409.66, 138,631.56 and 29,245.68 is: 43,873.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,409.66 : 138,631.56 = 29,245.68 : x
  2. Step 2: Convert to fraction form
    92,409.66/138,631.56 = 29,245.68/x
  3. Step 3: Cross multiply
    92,409.66x = 138,631.56 × 29,245.68
  4. Step 4: Simplify right side
    92,409.66x = 4,054,374,241.66
  5. Step 5: Solve for x
    x = 4,054,374,241.66/92,409.66
  6. Step 6: Final answer
    x = 43,873.92

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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.