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Finding the Fourth Proportional to 100,560.26, 150,895.80 and 61,145.06

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Solution

The fourth proportional to 100,560.26, 150,895.80 and 61,145.06 is: 91,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,560.26 : 150,895.80 = 61,145.06 : x
  2. Step 2: Convert to fraction form
    100,560.26/150,895.80 = 61,145.06/x
  3. Step 3: Cross multiply
    100,560.26x = 150,895.80 × 61,145.06
  4. Step 4: Simplify right side
    100,560.26x = 9,226,531,990.27
  5. Step 5: Solve for x
    x = 9,226,531,990.27/100,560.26
  6. Step 6: Final answer
    x = 91,751.27

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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.