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Finding the Fourth Proportional to 272,034.25, 408,050.85 and 72,354.86

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Solution

The fourth proportional to 272,034.25, 408,050.85 and 72,354.86 is: 108,532.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,034.25 : 408,050.85 = 72,354.86 : x
  2. Step 2: Convert to fraction form
    272,034.25/408,050.85 = 72,354.86/x
  3. Step 3: Cross multiply
    272,034.25x = 408,050.85 × 72,354.86
  4. Step 4: Simplify right side
    272,034.25x = 29,524,462,124.63
  5. Step 5: Solve for x
    x = 29,524,462,124.63/272,034.25
  6. Step 6: Final answer
    x = 108,532.15

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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.