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Finding the Fourth Proportional to 74,118.44, 102,283.50 and 40,127.22

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Solution

The fourth proportional to 74,118.44, 102,283.50 and 40,127.22 is: 55,375.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,118.44 : 102,283.50 = 40,127.22 : x
  2. Step 2: Convert to fraction form
    74,118.44/102,283.50 = 40,127.22/x
  3. Step 3: Cross multiply
    74,118.44x = 102,283.50 × 40,127.22
  4. Step 4: Simplify right side
    74,118.44x = 4,104,352,506.87
  5. Step 5: Solve for x
    x = 4,104,352,506.87/74,118.44
  6. Step 6: Final answer
    x = 55,375.59

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1.5x scale

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.