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Finding the Fourth Proportional to 323,293.88, 446,145.26 and 187,406.53

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Solution

The fourth proportional to 323,293.88, 446,145.26 and 187,406.53 is: 258,620.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,293.88 : 446,145.26 = 187,406.53 : x
  2. Step 2: Convert to fraction form
    323,293.88/446,145.26 = 187,406.53/x
  3. Step 3: Cross multiply
    323,293.88x = 446,145.26 × 187,406.53
  4. Step 4: Simplify right side
    323,293.88x = 83,610,533,000.15
  5. Step 5: Solve for x
    x = 83,610,533,000.15/323,293.88
  6. Step 6: Final answer
    x = 258,620.83

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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.