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Finding the Fourth Proportional to 92,562.40, 138,908.40 and 40,009.60

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Solution

The fourth proportional to 92,562.40, 138,908.40 and 40,009.60 is: 60,042.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,562.40 : 138,908.40 = 40,009.60 : x
  2. Step 2: Convert to fraction form
    92,562.40/138,908.40 = 40,009.60/x
  3. Step 3: Cross multiply
    92,562.40x = 138,908.40 × 40,009.60
  4. Step 4: Simplify right side
    92,562.40x = 5,557,669,520.64
  5. Step 5: Solve for x
    x = 5,557,669,520.64/92,562.40
  6. Step 6: Final answer
    x = 60,042.41

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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.