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Finding the Fourth Proportional to 92,363.70, 138,597.45 and 50,246.72

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Solution

The fourth proportional to 92,363.70, 138,597.45 and 50,246.72 is: 75,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,363.70 : 138,597.45 = 50,246.72 : x
  2. Step 2: Convert to fraction form
    92,363.70/138,597.45 = 50,246.72/x
  3. Step 3: Cross multiply
    92,363.70x = 138,597.45 × 50,246.72
  4. Step 4: Simplify right side
    92,363.70x = 6,964,067,420.93
  5. Step 5: Solve for x
    x = 6,964,067,420.93/92,363.70
  6. Step 6: Final answer
    x = 75,398.32

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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.