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Finding the Fourth Proportional to 231,319.80, 346,461.30 and 189,847.80

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Solution

The fourth proportional to 231,319.80, 346,461.30 and 189,847.80 is: 284,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,319.80 : 346,461.30 = 189,847.80 : x
  2. Step 2: Convert to fraction form
    231,319.80/346,461.30 = 189,847.80/x
  3. Step 3: Cross multiply
    231,319.80x = 346,461.30 × 189,847.80
  4. Step 4: Simplify right side
    231,319.80x = 65,774,915,590.14
  5. Step 5: Solve for x
    x = 65,774,915,590.14/231,319.80
  6. Step 6: Final answer
    x = 284,346.24

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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.