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Finding the Fourth Proportional to 73,523.40, 110,231.10 and 29,128.20

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Solution

The fourth proportional to 73,523.40, 110,231.10 and 29,128.20 is: 43,670.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,523.40 : 110,231.10 = 29,128.20 : x
  2. Step 2: Convert to fraction form
    73,523.40/110,231.10 = 29,128.20/x
  3. Step 3: Cross multiply
    73,523.40x = 110,231.10 × 29,128.20
  4. Step 4: Simplify right side
    73,523.40x = 3,210,833,527.02
  5. Step 5: Solve for x
    x = 3,210,833,527.02/73,523.40
  6. Step 6: Final answer
    x = 43,670.91

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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.