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Finding the Fourth Proportional to 436,368.96, 654,553.44 and 120,825.72

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Solution

The fourth proportional to 436,368.96, 654,553.44 and 120,825.72 is: 181,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,368.96 : 654,553.44 = 120,825.72 : x
  2. Step 2: Convert to fraction form
    436,368.96/654,553.44 = 120,825.72/x
  3. Step 3: Cross multiply
    436,368.96x = 654,553.44 × 120,825.72
  4. Step 4: Simplify right side
    436,368.96x = 79,086,890,666.48
  5. Step 5: Solve for x
    x = 79,086,890,666.48/436,368.96
  6. Step 6: Final answer
    x = 181,238.58

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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.