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Finding the Fourth Proportional to 291,644.70, 437,121.45 and 123,164.70

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Solution

The fourth proportional to 291,644.70, 437,121.45 and 123,164.70 is: 184,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,644.70 : 437,121.45 = 123,164.70 : x
  2. Step 2: Convert to fraction form
    291,644.70/437,121.45 = 123,164.70/x
  3. Step 3: Cross multiply
    291,644.70x = 437,121.45 × 123,164.70
  4. Step 4: Simplify right side
    291,644.70x = 53,837,932,252.82
  5. Step 5: Solve for x
    x = 53,837,932,252.82/291,644.70
  6. Step 6: Final answer
    x = 184,601.10

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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.