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Finding the Fourth Proportional to 230,869.40, 346,304.10 and 205,064.60

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Solution

The fourth proportional to 230,869.40, 346,304.10 and 205,064.60 is: 307,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,869.40 : 346,304.10 = 205,064.60 : x
  2. Step 2: Convert to fraction form
    230,869.40/346,304.10 = 205,064.60/x
  3. Step 3: Cross multiply
    230,869.40x = 346,304.10 × 205,064.60
  4. Step 4: Simplify right side
    230,869.40x = 71,014,711,744.86
  5. Step 5: Solve for x
    x = 71,014,711,744.86/230,869.40
  6. Step 6: Final answer
    x = 307,596.90

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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.