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Finding the Fourth Proportional to 248,346.72, 372,228.30 and 114,945.21

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Solution

The fourth proportional to 248,346.72, 372,228.30 and 114,945.21 is: 172,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,346.72 : 372,228.30 = 114,945.21 : x
  2. Step 2: Convert to fraction form
    248,346.72/372,228.30 = 114,945.21/x
  3. Step 3: Cross multiply
    248,346.72x = 372,228.30 × 114,945.21
  4. Step 4: Simplify right side
    248,346.72x = 42,785,860,111.44
  5. Step 5: Solve for x
    x = 42,785,860,111.44/248,346.72
  6. Step 6: Final answer
    x = 172,282.77

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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.