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Finding the Fourth Proportional to 360,931.88, 542,379.25 and 192,571.15

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Solution

The fourth proportional to 360,931.88, 542,379.25 and 192,571.15 is: 289,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,931.88 : 542,379.25 = 192,571.15 : x
  2. Step 2: Convert to fraction form
    360,931.88/542,379.25 = 192,571.15/x
  3. Step 3: Cross multiply
    360,931.88x = 542,379.25 × 192,571.15
  4. Step 4: Simplify right side
    360,931.88x = 104,446,595,908.64
  5. Step 5: Solve for x
    x = 104,446,595,908.64/360,931.88
  6. Step 6: Final answer
    x = 289,380.36

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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.