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Finding the Fourth Proportional to 436,110.99, 654,178.79 and 120,567.87

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Solution

The fourth proportional to 436,110.99, 654,178.79 and 120,567.87 is: 180,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,110.99 : 654,178.79 = 120,567.87 : x
  2. Step 2: Convert to fraction form
    436,110.99/654,178.79 = 120,567.87/x
  3. Step 3: Cross multiply
    436,110.99x = 654,178.79 × 120,567.87
  4. Step 4: Simplify right side
    436,110.99x = 78,872,942,706.64
  5. Step 5: Solve for x
    x = 78,872,942,706.64/436,110.99
  6. Step 6: Final answer
    x = 180,855.21

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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.