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Finding the Fourth Proportional to 291,579.92, 402,378.54 and 164,296.52

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Solution

The fourth proportional to 291,579.92, 402,378.54 and 164,296.52 is: 226,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,579.92 : 402,378.54 = 164,296.52 : x
  2. Step 2: Convert to fraction form
    291,579.92/402,378.54 = 164,296.52/x
  3. Step 3: Cross multiply
    291,579.92x = 402,378.54 × 164,296.52
  4. Step 4: Simplify right side
    291,579.92x = 66,109,393,844.68
  5. Step 5: Solve for x
    x = 66,109,393,844.68/291,579.92
  6. Step 6: Final answer
    x = 226,728.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.