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Finding the Fourth Proportional to 238,456.21, 357,684.40 and 88,676.95

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Solution

The fourth proportional to 238,456.21, 357,684.40 and 88,676.95 is: 133,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,456.21 : 357,684.40 = 88,676.95 : x
  2. Step 2: Convert to fraction form
    238,456.21/357,684.40 = 88,676.95/x
  3. Step 3: Cross multiply
    238,456.21x = 357,684.40 × 88,676.95
  4. Step 4: Simplify right side
    238,456.21x = 31,718,361,211.20
  5. Step 5: Solve for x
    x = 31,718,361,211.20/238,456.21
  6. Step 6: Final answer
    x = 133,015.46

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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.