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Finding the Fourth Proportional to 447,301.99, 670,723.14 and 131,717.89

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Solution

The fourth proportional to 447,301.99, 670,723.14 and 131,717.89 is: 197,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,301.99 : 670,723.14 = 131,717.89 : x
  2. Step 2: Convert to fraction form
    447,301.99/670,723.14 = 131,717.89/x
  3. Step 3: Cross multiply
    447,301.99x = 670,723.14 × 131,717.89
  4. Step 4: Simplify right side
    447,301.99x = 88,346,235,098.17
  5. Step 5: Solve for x
    x = 88,346,235,098.17/447,301.99
  6. Step 6: Final answer
    x = 197,509.15

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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.