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Finding the Fourth Proportional to 447,609.02, 671,435.83 and 127,808.33

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Solution

The fourth proportional to 447,609.02, 671,435.83 and 127,808.33 is: 191,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,609.02 : 671,435.83 = 127,808.33 : x
  2. Step 2: Convert to fraction form
    447,609.02/671,435.83 = 127,808.33/x
  3. Step 3: Cross multiply
    447,609.02x = 671,435.83 × 127,808.33
  4. Step 4: Simplify right side
    447,609.02x = 85,815,088,937.05
  5. Step 5: Solve for x
    x = 85,815,088,937.05/447,609.02
  6. Step 6: Final answer
    x = 191,718.86

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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.