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Finding the Fourth Proportional to 92,818.90, 139,244.15 and 36,629.61

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Solution

The fourth proportional to 92,818.90, 139,244.15 and 36,629.61 is: 54,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,818.90 : 139,244.15 = 36,629.61 : x
  2. Step 2: Convert to fraction form
    92,818.90/139,244.15 = 36,629.61/x
  3. Step 3: Cross multiply
    92,818.90x = 139,244.15 × 36,629.61
  4. Step 4: Simplify right side
    92,818.90x = 5,100,458,909.28
  5. Step 5: Solve for x
    x = 5,100,458,909.28/92,818.90
  6. Step 6: Final answer
    x = 54,950.65

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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.