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Finding the Fourth Proportional to 350,354.61, 483,489.36 and 189,209.66

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Solution

The fourth proportional to 350,354.61, 483,489.36 and 189,209.66 is: 261,109.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,354.61 : 483,489.36 = 189,209.66 : x
  2. Step 2: Convert to fraction form
    350,354.61/483,489.36 = 189,209.66/x
  3. Step 3: Cross multiply
    350,354.61x = 483,489.36 × 189,209.66
  4. Step 4: Simplify right side
    350,354.61x = 91,480,855,001.77
  5. Step 5: Solve for x
    x = 91,480,855,001.77/350,354.61
  6. Step 6: Final answer
    x = 261,109.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.