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Finding the Fourth Proportional to 74,809.44, 112,213.26 and 43,266.96

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Solution

The fourth proportional to 74,809.44, 112,213.26 and 43,266.96 is: 64,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.44 : 112,213.26 = 43,266.96 : x
  2. Step 2: Convert to fraction form
    74,809.44/112,213.26 = 43,266.96/x
  3. Step 3: Cross multiply
    74,809.44x = 112,213.26 × 43,266.96
  4. Step 4: Simplify right side
    74,809.44x = 4,855,126,631.89
  5. Step 5: Solve for x
    x = 4,855,126,631.89/74,809.44
  6. Step 6: Final answer
    x = 64,899.92

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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.