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Finding the Fourth Proportional to 92,415.90, 138,623.87 and 36,282.48

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Solution

The fourth proportional to 92,415.90, 138,623.87 and 36,282.48 is: 54,423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,415.90 : 138,623.87 = 36,282.48 : x
  2. Step 2: Convert to fraction form
    92,415.90/138,623.87 = 36,282.48/x
  3. Step 3: Cross multiply
    92,415.90x = 138,623.87 × 36,282.48
  4. Step 4: Simplify right side
    92,415.90x = 5,029,617,790.80
  5. Step 5: Solve for x
    x = 5,029,617,790.80/92,415.90
  6. Step 6: Final answer
    x = 54,423.73

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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.