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Finding the Fourth Proportional to 447,614.57, 671,444.16 and 127,813.88

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Solution

The fourth proportional to 447,614.57, 671,444.16 and 127,813.88 is: 191,727.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,614.57 : 671,444.16 = 127,813.88 : x
  2. Step 2: Convert to fraction form
    447,614.57/671,444.16 = 127,813.88/x
  3. Step 3: Cross multiply
    447,614.57x = 671,444.16 × 127,813.88
  4. Step 4: Simplify right side
    447,614.57x = 85,819,882,653.87
  5. Step 5: Solve for x
    x = 85,819,882,653.87/447,614.57
  6. Step 6: Final answer
    x = 191,727.19

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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.