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Finding the Fourth Proportional to 112,564.80, 168,822.08 and 33,668.80

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Solution

The fourth proportional to 112,564.80, 168,822.08 and 33,668.80 is: 50,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,564.80 : 168,822.08 = 33,668.80 : x
  2. Step 2: Convert to fraction form
    112,564.80/168,822.08 = 33,668.80/x
  3. Step 3: Cross multiply
    112,564.80x = 168,822.08 × 33,668.80
  4. Step 4: Simplify right side
    112,564.80x = 5,684,036,847.10
  5. Step 5: Solve for x
    x = 5,684,036,847.10/112,564.80
  6. Step 6: Final answer
    x = 50,495.69

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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.