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Finding the Fourth Proportional to 120,994.21, 166,948.08 and 73,252

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Solution

The fourth proportional to 120,994.21, 166,948.08 and 73,252 is: 101,073.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,994.21 : 166,948.08 = 73,252 : x
  2. Step 2: Convert to fraction form
    120,994.21/166,948.08 = 73,252/x
  3. Step 3: Cross multiply
    120,994.21x = 166,948.08 × 73,252
  4. Step 4: Simplify right side
    120,994.21x = 12,229,280,756.16
  5. Step 5: Solve for x
    x = 12,229,280,756.16/120,994.21
  6. Step 6: Final answer
    x = 101,073.27

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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.