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Finding the Fourth Proportional to 172,848.12, 238,404.43 and 132,104.31

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Solution

The fourth proportional to 172,848.12, 238,404.43 and 132,104.31 is: 182,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,848.12 : 238,404.43 = 132,104.31 : x
  2. Step 2: Convert to fraction form
    172,848.12/238,404.43 = 132,104.31/x
  3. Step 3: Cross multiply
    172,848.12x = 238,404.43 × 132,104.31
  4. Step 4: Simplify right side
    172,848.12x = 31,494,252,726.09
  5. Step 5: Solve for x
    x = 31,494,252,726.09/172,848.12
  6. Step 6: Final answer
    x = 182,207.67

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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.