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Finding the Fourth Proportional to 262,044.86, 393,074.96 and 72,506.76

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Solution

The fourth proportional to 262,044.86, 393,074.96 and 72,506.76 is: 108,762.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,044.86 : 393,074.96 = 72,506.76 : x
  2. Step 2: Convert to fraction form
    262,044.86/393,074.96 = 72,506.76/x
  3. Step 3: Cross multiply
    262,044.86x = 393,074.96 × 72,506.76
  4. Step 4: Simplify right side
    262,044.86x = 28,500,589,950.16
  5. Step 5: Solve for x
    x = 28,500,589,950.16/262,044.86
  6. Step 6: Final answer
    x = 108,762.26

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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.