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Finding the Fourth Proportional to 72,264.80, 108,429.60 and 32,801.60

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Solution

The fourth proportional to 72,264.80, 108,429.60 and 32,801.60 is: 49,217.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,264.80 : 108,429.60 = 32,801.60 : x
  2. Step 2: Convert to fraction form
    72,264.80/108,429.60 = 32,801.60/x
  3. Step 3: Cross multiply
    72,264.80x = 108,429.60 × 32,801.60
  4. Step 4: Simplify right side
    72,264.80x = 3,556,664,367.36
  5. Step 5: Solve for x
    x = 3,556,664,367.36/72,264.80
  6. Step 6: Final answer
    x = 49,217.11

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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.