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Finding the Fourth Proportional to 230,292.81, 345,451.59 and 72,533.61

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Solution

The fourth proportional to 230,292.81, 345,451.59 and 72,533.61 is: 108,804.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,292.81 : 345,451.59 = 72,533.61 : x
  2. Step 2: Convert to fraction form
    230,292.81/345,451.59 = 72,533.61/x
  3. Step 3: Cross multiply
    230,292.81x = 345,451.59 × 72,533.61
  4. Step 4: Simplify right side
    230,292.81x = 25,056,850,902.94
  5. Step 5: Solve for x
    x = 25,056,850,902.94/230,292.81
  6. Step 6: Final answer
    x = 108,804.31

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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.