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Finding the Fourth Proportional to 168,321, 252,479.46 and 97,350.42

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Solution

The fourth proportional to 168,321, 252,479.46 and 97,350.42 is: 146,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,321 : 252,479.46 = 97,350.42 : x
  2. Step 2: Convert to fraction form
    168,321/252,479.46 = 97,350.42/x
  3. Step 3: Cross multiply
    168,321x = 252,479.46 × 97,350.42
  4. Step 4: Simplify right side
    168,321x = 24,578,981,472.37
  5. Step 5: Solve for x
    x = 24,578,981,472.37/168,321
  6. Step 6: Final answer
    x = 146,024.45

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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.