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Finding the Fourth Proportional to 436,266.93, 654,400.41 and 120,723.84

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Solution

The fourth proportional to 436,266.93, 654,400.41 and 120,723.84 is: 181,085.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,266.93 : 654,400.41 = 120,723.84 : x
  2. Step 2: Convert to fraction form
    436,266.93/654,400.41 = 120,723.84/x
  3. Step 3: Cross multiply
    436,266.93x = 654,400.41 × 120,723.84
  4. Step 4: Simplify right side
    436,266.93x = 79,001,730,392.77
  5. Step 5: Solve for x
    x = 79,001,730,392.77/436,266.93
  6. Step 6: Final answer
    x = 181,085.76

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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.