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Finding the Fourth Proportional to 437,626.10, 656,429.55 and 122,074.10

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Solution

The fourth proportional to 437,626.10, 656,429.55 and 122,074.10 is: 183,108.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,626.10 : 656,429.55 = 122,074.10 : x
  2. Step 2: Convert to fraction form
    437,626.10/656,429.55 = 122,074.10/x
  3. Step 3: Cross multiply
    437,626.10x = 656,429.55 × 122,074.10
  4. Step 4: Simplify right side
    437,626.10x = 80,133,046,529.66
  5. Step 5: Solve for x
    x = 80,133,046,529.66/437,626.10
  6. Step 6: Final answer
    x = 183,108.47

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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.