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Finding the Fourth Proportional to 362,571.80, 542,693.12 and 193,669.79

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Solution

The fourth proportional to 362,571.80, 542,693.12 and 193,669.79 is: 289,882.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,571.80 : 542,693.12 = 193,669.79 : x
  2. Step 2: Convert to fraction form
    362,571.80/542,693.12 = 193,669.79/x
  3. Step 3: Cross multiply
    362,571.80x = 542,693.12 × 193,669.79
  4. Step 4: Simplify right side
    362,571.80x = 105,103,258,903.03
  5. Step 5: Solve for x
    x = 105,103,258,903.03/362,571.80
  6. Step 6: Final answer
    x = 289,882.61

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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.