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Finding the Fourth Proportional to 248,354.17, 372,271.92 and 115,124.56

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Solution

The fourth proportional to 248,354.17, 372,271.92 and 115,124.56 is: 172,566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,354.17 : 372,271.92 = 115,124.56 : x
  2. Step 2: Convert to fraction form
    248,354.17/372,271.92 = 115,124.56/x
  3. Step 3: Cross multiply
    248,354.17x = 372,271.92 × 115,124.56
  4. Step 4: Simplify right side
    248,354.17x = 42,857,640,990.36
  5. Step 5: Solve for x
    x = 42,857,640,990.36/248,354.17
  6. Step 6: Final answer
    x = 172,566.63

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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.