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Finding the Fourth Proportional to 56,583.72, 78,137.72 and 36,475.28

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Solution

The fourth proportional to 56,583.72, 78,137.72 and 36,475.28 is: 50,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,583.72 : 78,137.72 = 36,475.28 : x
  2. Step 2: Convert to fraction form
    56,583.72/78,137.72 = 36,475.28/x
  3. Step 3: Cross multiply
    56,583.72x = 78,137.72 × 36,475.28
  4. Step 4: Simplify right side
    56,583.72x = 2,850,095,215.56
  5. Step 5: Solve for x
    x = 2,850,095,215.56/56,583.72
  6. Step 6: Final answer
    x = 50,369.53

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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.