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Finding the Fourth Proportional to 92,705.60, 138,975.92 and 33,528.11

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Solution

The fourth proportional to 92,705.60, 138,975.92 and 33,528.11 is: 50,262.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,705.60 : 138,975.92 = 33,528.11 : x
  2. Step 2: Convert to fraction form
    92,705.60/138,975.92 = 33,528.11/x
  3. Step 3: Cross multiply
    92,705.60x = 138,975.92 × 33,528.11
  4. Step 4: Simplify right side
    92,705.60x = 4,659,599,933.11
  5. Step 5: Solve for x
    x = 4,659,599,933.11/92,705.60
  6. Step 6: Final answer
    x = 50,262.34

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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.