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Finding the Fourth Proportional to 74,461.64, 111,586.44 and 36,984.98

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Solution

The fourth proportional to 74,461.64, 111,586.44 and 36,984.98 is: 55,424.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,461.64 : 111,586.44 = 36,984.98 : x
  2. Step 2: Convert to fraction form
    74,461.64/111,586.44 = 36,984.98/x
  3. Step 3: Cross multiply
    74,461.64x = 111,586.44 × 36,984.98
  4. Step 4: Simplify right side
    74,461.64x = 4,127,022,251.67
  5. Step 5: Solve for x
    x = 4,127,022,251.67/74,461.64
  6. Step 6: Final answer
    x = 55,424.81

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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.