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Finding the Fourth Proportional to 292,208.70, 437,967.45 and 123,728.70

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Solution

The fourth proportional to 292,208.70, 437,967.45 and 123,728.70 is: 185,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,208.70 : 437,967.45 = 123,728.70 : x
  2. Step 2: Convert to fraction form
    292,208.70/437,967.45 = 123,728.70/x
  3. Step 3: Cross multiply
    292,208.70x = 437,967.45 × 123,728.70
  4. Step 4: Simplify right side
    292,208.70x = 54,189,143,230.82
  5. Step 5: Solve for x
    x = 54,189,143,230.82/292,208.70
  6. Step 6: Final answer
    x = 185,446.71

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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.