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Finding the Fourth Proportional to 92,776.54, 139,157.52 and 26,213.98

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Solution

The fourth proportional to 92,776.54, 139,157.52 and 26,213.98 is: 39,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,776.54 : 139,157.52 = 26,213.98 : x
  2. Step 2: Convert to fraction form
    92,776.54/139,157.52 = 26,213.98/x
  3. Step 3: Cross multiply
    92,776.54x = 139,157.52 × 26,213.98
  4. Step 4: Simplify right side
    92,776.54x = 3,647,872,446.13
  5. Step 5: Solve for x
    x = 3,647,872,446.13/92,776.54
  6. Step 6: Final answer
    x = 39,318.91

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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.