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Finding the Fourth Proportional to 74,297.94, 102,529.89 and 40,763.22

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Solution

The fourth proportional to 74,297.94, 102,529.89 and 40,763.22 is: 56,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,297.94 : 102,529.89 = 40,763.22 : x
  2. Step 2: Convert to fraction form
    74,297.94/102,529.89 = 40,763.22/x
  3. Step 3: Cross multiply
    74,297.94x = 102,529.89 × 40,763.22
  4. Step 4: Simplify right side
    74,297.94x = 4,179,448,462.65
  5. Step 5: Solve for x
    x = 4,179,448,462.65/74,297.94
  6. Step 6: Final answer
    x = 56,252.55

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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.