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Finding the Fourth Proportional to 178,994.88, 246,765.84 and 142,819.18

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Solution

The fourth proportional to 178,994.88, 246,765.84 and 142,819.18 is: 196,893.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,994.88 : 246,765.84 = 142,819.18 : x
  2. Step 2: Convert to fraction form
    178,994.88/246,765.84 = 142,819.18/x
  3. Step 3: Cross multiply
    178,994.88x = 246,765.84 × 142,819.18
  4. Step 4: Simplify right side
    178,994.88x = 35,242,894,920.81
  5. Step 5: Solve for x
    x = 35,242,894,920.81/178,994.88
  6. Step 6: Final answer
    x = 196,893.31

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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.