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Finding the Fourth Proportional to 248,573.10, 372,920.40 and 115,425.30

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Solution

The fourth proportional to 248,573.10, 372,920.40 and 115,425.30 is: 173,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,573.10 : 372,920.40 = 115,425.30 : x
  2. Step 2: Convert to fraction form
    248,573.10/372,920.40 = 115,425.30/x
  3. Step 3: Cross multiply
    248,573.10x = 372,920.40 × 115,425.30
  4. Step 4: Simplify right side
    248,573.10x = 43,044,449,046.12
  5. Step 5: Solve for x
    x = 43,044,449,046.12/248,573.10
  6. Step 6: Final answer
    x = 173,166.16

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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.