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Finding the Fourth Proportional to 123,673.20, 185,596.20 and 53,602.80

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Solution

The fourth proportional to 123,673.20, 185,596.20 and 53,602.80 is: 80,441.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,673.20 : 185,596.20 = 53,602.80 : x
  2. Step 2: Convert to fraction form
    123,673.20/185,596.20 = 53,602.80/x
  3. Step 3: Cross multiply
    123,673.20x = 185,596.20 × 53,602.80
  4. Step 4: Simplify right side
    123,673.20x = 9,948,475,989.36
  5. Step 5: Solve for x
    x = 9,948,475,989.36/123,673.20
  6. Step 6: Final answer
    x = 80,441.65

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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.