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Finding the Fourth Proportional to 100,964.44, 151,279.26 and 61,401.88

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Solution

The fourth proportional to 100,964.44, 151,279.26 and 61,401.88 is: 92,001.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,964.44 : 151,279.26 = 61,401.88 : x
  2. Step 2: Convert to fraction form
    100,964.44/151,279.26 = 61,401.88/x
  3. Step 3: Cross multiply
    100,964.44x = 151,279.26 × 61,401.88
  4. Step 4: Simplify right side
    100,964.44x = 9,288,830,969.01
  5. Step 5: Solve for x
    x = 9,288,830,969.01/100,964.44
  6. Step 6: Final answer
    x = 92,001.02

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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.