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Finding the Fourth Proportional to 231,019.80, 346,529.70 and 168,034.20

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Solution

The fourth proportional to 231,019.80, 346,529.70 and 168,034.20 is: 252,051.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,019.80 : 346,529.70 = 168,034.20 : x
  2. Step 2: Convert to fraction form
    231,019.80/346,529.70 = 168,034.20/x
  3. Step 3: Cross multiply
    231,019.80x = 346,529.70 × 168,034.20
  4. Step 4: Simplify right side
    231,019.80x = 58,228,840,915.74
  5. Step 5: Solve for x
    x = 58,228,840,915.74/231,019.80
  6. Step 6: Final answer
    x = 252,051.30

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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.