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Finding the Fourth Proportional to 248,749.92, 343,274.76 and 135,572.76

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Solution

The fourth proportional to 248,749.92, 343,274.76 and 135,572.76 is: 187,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,749.92 : 343,274.76 = 135,572.76 : x
  2. Step 2: Convert to fraction form
    248,749.92/343,274.76 = 135,572.76/x
  3. Step 3: Cross multiply
    248,749.92x = 343,274.76 × 135,572.76
  4. Step 4: Simplify right side
    248,749.92x = 46,538,706,651.54
  5. Step 5: Solve for x
    x = 46,538,706,651.54/248,749.92
  6. Step 6: Final answer
    x = 187,090.34

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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.