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Finding the Fourth Proportional to 230,308.37, 345,474.93 and 72,549.17

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Solution

The fourth proportional to 230,308.37, 345,474.93 and 72,549.17 is: 108,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,308.37 : 345,474.93 = 72,549.17 : x
  2. Step 2: Convert to fraction form
    230,308.37/345,474.93 = 72,549.17/x
  3. Step 3: Cross multiply
    230,308.37x = 345,474.93 × 72,549.17
  4. Step 4: Simplify right side
    230,308.37x = 25,063,920,563.05
  5. Step 5: Solve for x
    x = 25,063,920,563.05/230,308.37
  6. Step 6: Final answer
    x = 108,827.66

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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.