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Finding the Fourth Proportional to 116,395.88, 174,815.26 and 72,330.58

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Solution

The fourth proportional to 116,395.88, 174,815.26 and 72,330.58 is: 108,633.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,395.88 : 174,815.26 = 72,330.58 : x
  2. Step 2: Convert to fraction form
    116,395.88/174,815.26 = 72,330.58/x
  3. Step 3: Cross multiply
    116,395.88x = 174,815.26 × 72,330.58
  4. Step 4: Simplify right side
    116,395.88x = 12,644,489,148.65
  5. Step 5: Solve for x
    x = 12,644,489,148.65/116,395.88
  6. Step 6: Final answer
    x = 108,633.48

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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.