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Finding the Fourth Proportional to 119,541.26, 179,339.97 and 66,987.02

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Solution

The fourth proportional to 119,541.26, 179,339.97 and 66,987.02 is: 100,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,541.26 : 179,339.97 = 66,987.02 : x
  2. Step 2: Convert to fraction form
    119,541.26/179,339.97 = 66,987.02/x
  3. Step 3: Cross multiply
    119,541.26x = 179,339.97 × 66,987.02
  4. Step 4: Simplify right side
    119,541.26x = 12,013,450,157.19
  5. Step 5: Solve for x
    x = 12,013,450,157.19/119,541.26
  6. Step 6: Final answer
    x = 100,496.27

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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.