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Finding the Fourth Proportional to 100,666.01, 150,670.44 and 74,004.94

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Solution

The fourth proportional to 100,666.01, 150,670.44 and 74,004.94 is: 110,765.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,666.01 : 150,670.44 = 74,004.94 : x
  2. Step 2: Convert to fraction form
    100,666.01/150,670.44 = 74,004.94/x
  3. Step 3: Cross multiply
    100,666.01x = 150,670.44 × 74,004.94
  4. Step 4: Simplify right side
    100,666.01x = 11,150,356,871.97
  5. Step 5: Solve for x
    x = 11,150,356,871.97/100,666.01
  6. Step 6: Final answer
    x = 110,765.86

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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.