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Finding the Fourth Proportional to 436,825.91, 655,238.41 and 137,332.67

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Solution

The fourth proportional to 436,825.91, 655,238.41 and 137,332.67 is: 205,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,825.91 : 655,238.41 = 137,332.67 : x
  2. Step 2: Convert to fraction form
    436,825.91/655,238.41 = 137,332.67/x
  3. Step 3: Cross multiply
    436,825.91x = 655,238.41 × 137,332.67
  4. Step 4: Simplify right side
    436,825.91x = 89,985,637,484.83
  5. Step 5: Solve for x
    x = 89,985,637,484.83/436,825.91
  6. Step 6: Final answer
    x = 205,998.85

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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.