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Finding the Fourth Proportional to 246,409.76, 340,031.51 and 138,973.38

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Solution

The fourth proportional to 246,409.76, 340,031.51 and 138,973.38 is: 191,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,409.76 : 340,031.51 = 138,973.38 : x
  2. Step 2: Convert to fraction form
    246,409.76/340,031.51 = 138,973.38/x
  3. Step 3: Cross multiply
    246,409.76x = 340,031.51 × 138,973.38
  4. Step 4: Simplify right side
    246,409.76x = 47,255,327,556.34
  5. Step 5: Solve for x
    x = 47,255,327,556.34/246,409.76
  6. Step 6: Final answer
    x = 191,775.39

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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.