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Finding the Fourth Proportional to 230,937.40, 346,406.10 and 205,132.60

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Solution

The fourth proportional to 230,937.40, 346,406.10 and 205,132.60 is: 307,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,937.40 : 346,406.10 = 205,132.60 : x
  2. Step 2: Convert to fraction form
    230,937.40/346,406.10 = 205,132.60/x
  3. Step 3: Cross multiply
    230,937.40x = 346,406.10 × 205,132.60
  4. Step 4: Simplify right side
    230,937.40x = 71,059,183,948.86
  5. Step 5: Solve for x
    x = 71,059,183,948.86/230,937.40
  6. Step 6: Final answer
    x = 307,698.90

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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.