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Finding the Fourth Proportional to 193,287.88, 289,886.94 and 53,057.80

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Solution

The fourth proportional to 193,287.88, 289,886.94 and 53,057.80 is: 79,574.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,287.88 : 289,886.94 = 53,057.80 : x
  2. Step 2: Convert to fraction form
    193,287.88/289,886.94 = 53,057.80/x
  3. Step 3: Cross multiply
    193,287.88x = 289,886.94 × 53,057.80
  4. Step 4: Simplify right side
    193,287.88x = 15,380,763,285.13
  5. Step 5: Solve for x
    x = 15,380,763,285.13/193,287.88
  6. Step 6: Final answer
    x = 79,574.38

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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.