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Finding the Fourth Proportional to 437,626.72, 656,550.78 and 122,083.48

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Solution

The fourth proportional to 437,626.72, 656,550.78 and 122,083.48 is: 183,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,626.72 : 656,550.78 = 122,083.48 : x
  2. Step 2: Convert to fraction form
    437,626.72/656,550.78 = 122,083.48/x
  3. Step 3: Cross multiply
    437,626.72x = 656,550.78 × 122,083.48
  4. Step 4: Simplify right side
    437,626.72x = 80,154,004,019.11
  5. Step 5: Solve for x
    x = 80,154,004,019.11/437,626.72
  6. Step 6: Final answer
    x = 183,156.10

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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.