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Finding the Fourth Proportional to 297,190.58, 445,784.30 and 72,552.20

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Solution

The fourth proportional to 297,190.58, 445,784.30 and 72,552.20 is: 108,827.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,190.58 : 445,784.30 = 72,552.20 : x
  2. Step 2: Convert to fraction form
    297,190.58/445,784.30 = 72,552.20/x
  3. Step 3: Cross multiply
    297,190.58x = 445,784.30 × 72,552.20
  4. Step 4: Simplify right side
    297,190.58x = 32,342,631,690.46
  5. Step 5: Solve for x
    x = 32,342,631,690.46/297,190.58
  6. Step 6: Final answer
    x = 108,827.92

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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.