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Finding the Fourth Proportional to 296,666.22, 445,002.12 and 72,028.62

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Solution

The fourth proportional to 296,666.22, 445,002.12 and 72,028.62 is: 108,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,666.22 : 445,002.12 = 72,028.62 : x
  2. Step 2: Convert to fraction form
    296,666.22/445,002.12 = 72,028.62/x
  3. Step 3: Cross multiply
    296,666.22x = 445,002.12 × 72,028.62
  4. Step 4: Simplify right side
    296,666.22x = 32,052,888,600.67
  5. Step 5: Solve for x
    x = 32,052,888,600.67/296,666.22
  6. Step 6: Final answer
    x = 108,043.61

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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.