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Finding the Fourth Proportional to 315,892.92, 435,881.82 and 179,929.52

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Solution

The fourth proportional to 315,892.92, 435,881.82 and 179,929.52 is: 248,274.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,892.92 : 435,881.82 = 179,929.52 : x
  2. Step 2: Convert to fraction form
    315,892.92/435,881.82 = 179,929.52/x
  3. Step 3: Cross multiply
    315,892.92x = 435,881.82 × 179,929.52
  4. Step 4: Simplify right side
    315,892.92x = 78,428,004,469.92
  5. Step 5: Solve for x
    x = 78,428,004,469.92/315,892.92
  6. Step 6: Final answer
    x = 248,274.02

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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.