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Finding the Fourth Proportional to 262,605.16, 393,874.94 and 73,079.74

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Solution

The fourth proportional to 262,605.16, 393,874.94 and 73,079.74 is: 109,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,605.16 : 393,874.94 = 73,079.74 : x
  2. Step 2: Convert to fraction form
    262,605.16/393,874.94 = 73,079.74/x
  3. Step 3: Cross multiply
    262,605.16x = 393,874.94 × 73,079.74
  4. Step 4: Simplify right side
    262,605.16x = 28,784,277,842.32
  5. Step 5: Solve for x
    x = 28,784,277,842.32/262,605.16
  6. Step 6: Final answer
    x = 109,610.48

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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.