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Finding the Fourth Proportional to 74,832.66, 103,276.35 and 55,936.98

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Solution

The fourth proportional to 74,832.66, 103,276.35 and 55,936.98 is: 77,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,832.66 : 103,276.35 = 55,936.98 : x
  2. Step 2: Convert to fraction form
    74,832.66/103,276.35 = 55,936.98/x
  3. Step 3: Cross multiply
    74,832.66x = 103,276.35 × 55,936.98
  4. Step 4: Simplify right side
    74,832.66x = 5,776,967,124.42
  5. Step 5: Solve for x
    x = 5,776,967,124.42/74,832.66
  6. Step 6: Final answer
    x = 77,198.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.