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Finding the Fourth Proportional to 331,574.66, 496,972.40 and 153,707.30

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Solution

The fourth proportional to 331,574.66, 496,972.40 and 153,707.30 is: 230,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,574.66 : 496,972.40 = 153,707.30 : x
  2. Step 2: Convert to fraction form
    331,574.66/496,972.40 = 153,707.30/x
  3. Step 3: Cross multiply
    331,574.66x = 496,972.40 × 153,707.30
  4. Step 4: Simplify right side
    331,574.66x = 76,388,285,778.52
  5. Step 5: Solve for x
    x = 76,388,285,778.52/331,574.66
  6. Step 6: Final answer
    x = 230,380.35

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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.