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Finding the Fourth Proportional to 230,831.66, 346,299.37 and 73,069.58

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Solution

The fourth proportional to 230,831.66, 346,299.37 and 73,069.58 is: 109,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,831.66 : 346,299.37 = 73,069.58 : x
  2. Step 2: Convert to fraction form
    230,831.66/346,299.37 = 73,069.58/x
  3. Step 3: Cross multiply
    230,831.66x = 346,299.37 × 73,069.58
  4. Step 4: Simplify right side
    230,831.66x = 25,303,949,520.16
  5. Step 5: Solve for x
    x = 25,303,949,520.16/230,831.66
  6. Step 6: Final answer
    x = 109,620.79

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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.